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How Does Your Garden Grow Math Unit
1. Does
How Does Your Garden
Grow ?
Math Unit
These are just a few math ideas for plants.
Measure Plant Growth
You will need the following materials:
notebook and pencil ruler soil pots seeds- bean, radish, or pea
1. Put soil in the pots. Poke holes and put seeds in the soil. Cover the seeds with soil.
2. Put the pots in the sun. Water the plants.
3. Every day: Measure how much the plant has grown. Count the number of leaves.
Record the information in the notebook. (For younger children, you may want to do
this as a class project!)
Measure Up With Plants
You will need the following materials:
plant part to measure with- a leaf, a twig, a seed, a fruit, or a flower
1. Pick a plant part to measure with.
2. Measure various things in the classroom.
3. Fill out a class chart either as a group or using partners to show the unit of
measure and the item measured.
Flower Power
You will need the following:
flower pot pattern flower pattern stem pattern
Graciela Bilat
2. 1. Program each flower with a number word, each stem with a dot set
(Ex. If the number is 6, put 6 dots on the stem), and each pot with a
numeral.
2. To do this activity, a child sequences the pots, the matches each
corresponding stem and flower.
I have also used real pots and card holders from the florist with
construction paper flowers attached. The child places the actual
number of "flowers" in each pot!
Watermelon Seeds
You will need the following materials:
10 or 11 "watermelons" made with green constr. paper cut into a
watermelon shape with red constr. paper in the middle to represent the
meat. lima beans spray painted black
1. Have each child look at each construction paper watermelon
(these are prenumbered on the "rhine" 0-10 or 1-10 or as far as
you want to go).
2. The children decide how many "seeds" to put on each
"watermelon".
***If you would like this to be self-checking, Turn the
watermelon over to the back and either draw or glue the correct
number of seeds. I also write the number words along with the
numeral!
The Great Corn and Bean Racee
You will need the following materials:
2 clear plastic cups beans and corn for planting in the
individual cups potting soil some measuring tool (piece of
string, measuring tape, ruler, anything you wish) paper for
recording results Prepared chart labeled "The Great Corn and
Bean Race" Have 2 columns, 1 column labeled "Corn" and the
other "Beans"
1. Plant beans into 1 cup and corn into the other.
2. Ask children to predict which will grow faster and
record their names on the "Corn and Bean Race" chart
under the appropriate column.
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3. 3. Watch the plants grow and record findings. **You may
want to take the time to talk about measurement and use
your measuring tool.
4. Discuss the results
Garden Science Activities!!!
Measure Plant Growth
You will need the following materials:
notebook and pencil ruler soil pots seeds- bean, radish, or pea
1. Put soil in the pots. Poke holes and put seeds in the soil. Cover the seeds with soil.
2. Put the pots in the sun. Water the plants.
3. Every day: Measure how much the plant has grown. Count the number of leaves.
Record the information in the notebook. (For younger children, you may want to
do this as a class project!)
Plants Need Sunlight
You will need the following:
2 small green plants brown paper bag
1. Put the plants in a sunny window. Cover one plant with the bag.
2. Water each plant, but always keep the one plant under its bag.
3. Watch what happens over the next few weeks.
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4. Plants Need Water
You will need the following materials:
2 small potted plants
1. Put both plants in a sunny window.
2. Water one plant when it is dry. DO NOT water the other plant.
3. Check every day to see what happens to the plants.
Water Moves Up Stems
You will need the following materials:
celery with tops white carnations 2 glasses of water food coloring
1. Add food coloring to the two glasses of water. Put celery in one glass and a
carnation in the other.
2. Put the glasses in the sunlight. Leave overnight.
3. Check the celery and carnation. What do you see?
4. A fresh cut stem will pick up the water better.
The "Inside" Story
You will need the following materials:
soaked lima beans or pinto beans a small knife (for teacher use only) paper plates
toothpicks magnifying glasses
1. In advance, soak beans overnight. Demonstrating with a whole soaked bean,
show the children the paper-thin seed coat. By rubbing the bean between your
thumb and finger, you can remove the coating. What do the children think the
coating is for? (Like skin, it protects the seed.)
2. Next split the rest of the soaked beans into their two sections. Explain to the
children that they are going to have a chance to see what is inside a seed. Then
give each student or pair of students both halves of a bean to examine closely
under a magnifying glass. (Make sure they understand that a bean is the seed of
a bean plant.)
3. As the children examine the inside of their seeds, ask them if they can see a tiny
plant already inside the seed. Explain that this baby plant is called the embryo.
The children will be able to see that the baby plant already has tiny leaves and
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5. roots. The rest of the seed, called the seed leaves, contains food for the baby
plant. You might also point out the spot, where the bean was attached to its stem.
Feeding the Baby
You will need the following materials:
a slice of bread sugar a few drops of milk soaked lima beans or pinto beans
iodine medicine dropper
1. Remind the children that most of a seed (the seed leaves) contains food for the
baby plant inside. Ask children what kind of food they think the baby plant eats.
Then explain that baby plants need starch. Foods people eat, such as bread, milk,
and sugar, contain starch.
2. Tell the class that scientists have a way to test to see whether foods contain
starch. Then demonstrate the test by dropping a little iodine onto the bread, the
sugar, and into the milk. Let the children see that all three turn blue or purple.
This means the food contains starch.
3. Ask children what they predict will happen if a little iodine is dropped onto the
seed leaves of the pinto or lima beans. Cut open the beans and perform the test.
(It will be positive.) Ask the students what the test proves.
Different Ways to Grow Plants
You will need the following materials:
sweet potato sprig of ivy 2 jars of water
1. Put the end of the potato in the water. (You may need toothpicks to hold it in
place.)
2. Put the ivy sprig in a jar of water.
3. Watch for roots and leaves to grow.
Wet Seeds, Dry Seeds
You will need the following materials:
lima beans a plant mister twist ties paper toweling plastic bags
1. Now that the children know where seeds come from and what's inside them, ask
them if they have any ideas about what makes seeds start to grow. Why do seeds
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6. start growing when we put them in the ground, but not if we leave them in a bag
or a jar? Invite the children to do an experiment to find out the answer.
2. Have the children pair up. Give each pair a handful of lima beans and two sheets
of paper toweling. Show the children how to put some of the beans on the
towling, rolling each sheet with the seeds inside to make a "seed roll".
3. Have the pairs of children take turns using a plant mister to thoroughly moisten
one of the seed rolls. Then have the children put both rolls in separate plastic
bags and close the bags with twist ties. Have the children keep the bags in their
desks or another dark, warm place. Make one moist bag to put in the freezer
compartment of a refrigerator and another to put in your desk.
4. Have the children predict what will happen to the seeds in the moist roll, the
seeds in the dry roll, and the seeds ion the freezer roll. Record the children's
predictions to compare with what actually happens after step 4.
5. After two or three days, check the wet seed roll in your desk to see if any seeds
have germinated. If not, wait a day or two longer. When you can see roots
growing out of the seeds, have the children open both of their rolls and compare
the wet seeds with the dry ones. The dry seeds will look the same as they did at
the beginning of the experiment: the wet seeds will have begun to grow.
6. Take the moist seed roll out of the freezer compartment and have the children
examine it. Why didn't any of the seeds start to grow?
7. What conclusion can the children draw about what makes seeds start to grow
(germinate)? (They need a moist, warm, dark environment.)
8. Explain that certain chemicals in the seeds make them start to grow. These
chemicals can't do their job when they are dry or too cold: they need warmth
and water to become active.
Growing Bulbs
You will need the following materials:
One of the following; onion, avacado, sweet potato, gladiola, etc. 3 toothpicks
clear glass jar or clear drinking glass water
1. Stick 3 toothpicks into the bulb.
2. Place the bulb on top of a clear glass or jar about 3/4 full of water with the
pointed end down.
3. Put the glass in a dark place for 2-4 weeks, or until the bulb sprouts and has
roots. The bulb may split slightly.
4. Add water when necessary, keeping the water level always about the same, 1/2
way up on the bulb.
5. Once the bulb has sprouted, put it in a sunny place, and watch it grow. Note: An
onion will produce long green leaves and perhaps even a flower, but it may
become smelly after a while.
6. Cut a gladiola bulb open and see the "babies" waiting to come out..
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7. Other Planting Ideas
Seeds in pine cones will sprout when pushed into the soil.
Plant raw shelled peanuts in a large container and keep moist.
Grow seeds in sponges (natural or man made). Place sponge in a bowl.
Keep the sponge moist and place in full sun.
Note: grass seed and bird seed work best.
Parts of a Plant: Listening Center Activity
You will need the following materials:
Homemade tape describing the parts of a plant Felt shapes cut to resemble
each plant part (store in a plastic baggie) flannelboard tape player and
headphones
Instruct the child(ren) to listen to the tape.As he listens have him arrange
the plant parts on the flannelboard according to the information on the
tape.
Growing Plants in the Classroom
You will need the following materials:
a variety of fresh vegetables a knife paper plates
1. In advance, prepare a variety of vegetables that can be eaten raw to bring
to class.
2. Call the children's attention tto the vegetables on display in the
classroom. Talk with the class about their experiences with eating
vegetables and which vegetables they like best.
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8. 3. Cut up and pass around some samples for the children to taste. Ask the
children to identify what they are eating.
4. As the children are eating, ask them where they think their snacks came
from. Help the children trace the vegetables from the supermarket back
to a farm where they were grown.
5. Discuss with the children that a garden is like a tiny farm where people
grow their own vegetables or flowers.
Where The Wild Things Aren't
You will need the following materials:
flowerpots digging tools plastic bags rubber bands a marker
potting soil radish seeds
1. Take the children on a nature walk in the woods, a park, or any
area where plants grow wild.
2. Ask the children if they think someone planted the trees and weeds
that they see. If no one planted them, how did they get there?
Explain that plants make their own seeds. The seeds fall or are
carried by wind or animals and land on the ground where they
grow into new plants.
3. To show the children that there are already seeds in the ground,
distribute digging tools and have groups of children fill flowerpots
with soil from an area where plenty of wild plants are growing.
4. Bring the pots back to the classroom and add water. Cover each
pot with a plastic bag secured with a rubber band to hold in
moisture.
5. Label each pot with a W for "wild" and put the pots in a sunny
place.
6. Ask the children to predict what will happen.
7. The next day each group will fill a flowerpot with potting soil and
plant radish seeds. Show the class pictures on the seed packets so
they will know what is being planted.
8. Moisten the soil and cover with plastic bags as you did with the
wild growth.
9. Label this pot with P for "planted".
10. In approximately a week, both pots should show signs of growth.
Compare and contrast the growth in the two pots.
From Seed to Plant
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9. Subject(s):
• Science/Agriculture
• Science/Botany
Introduction:
One of the most popular science units for a primary teacher is a unit on plants. This is a unit
on plants and seeds that I wrote for use this spring with
my children at Montessori Children's School in Vacaville, California. I created this unit by
compiling materials from many sources. Most teachers have many ideas up their sleeves.
Here are some of my favorite ideas that I use. I will be teaching this unit over a twelve-day
period for approx. 45 minutes at a time although the lessons can be adapted for longer or
shorter time periods.
Objectives:
Students will be able to:
1. Identify plant parts, where seeds come from and how they grow.
2. Determine what plants need to survive
3. Recognize how plants are a benefit to people and our planet.
Resources/Materials:
Assorted fruit, various seeds of different types, art and writing paper, construction paper,
clear plastic cups, magnifying glass, lunch box, card stock, straws and paper cups, magazine
pictures of plants,
Activities:
Day 1: What is a seed?
1. Look inside a seed. "You wear a coat to keep you from the cold. Seeds from flowering
plants have seed coats to protect them."
A. Soak a lima bean in water over night. Use a hand lens to examine the outside of the seed.
Try to peel off the seed covering. Split the seed in halves. Look for the parts showing the
chart. Draw the lima bean. Write the names of the parts of the seed.
B. Have children complete a chart of a seed, noting the seed coat, root, leaves, food storage,
and embryo.
Day 2: Seeds come in all shapes and sizes.
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10. 2. Most plants come from seeds. Display seeds that come from all kinds of plants: acorns,
poppies, carrots, lettuce, rice, watermelon, nuts, etc.
A. Measure the bulk of different kinds of seeds. Do an estimating activity allowing the
children to guess which seeds will fill more of a small cup. (Sunflower, watermelon and
marigold seeds are great for this project because they are easy to handle).
B. Some seeds grow from other plant parts (tubers). Onions makes parts that turn unto bulbs
and new plants. The bulbs are the part we eat. Show the children some of the foods that we
eat that are bulbs. (potato, onions etc.)
C. Show the children a lunch box and a peanut. Ask them what the two things have in
common. Explain that the shell of the peanut is the box and the inside is the lunch.
D. Create seed collages.
E. Roast pumpkinseeds.
Day 3: How do seeds travel?
3. The wind, animals (bury and or deposit seeds by their droppings) are just some of the
ways seeds travel. There are several great picture books on this subject. "The Tiny Seed" by
Eric Carle is one.
A. Write: "'Splash! You're a coconut that has just fallen from a palm tree into the ocean.
Write what happens to you."
B. Have the children take off their shoes and then go on a hike around the school or park.
When you get back to class, have the children examine their socks to see what kind of seeds
are stuck to the socks.
Day 4: What do seeds need to grow?
4. Lead a discussion by starting with "What do children need to grow?" Then, ask the
students what they think plants might need.
A. Sprout a seed in a jar/clear plastic cup with wet paper towels. A bean seed works great for
this. You can also try alfalfa sprouts, or popcorn.
B. Put some of the seeds in a windowsill to sprout. Put others in a dark corner. Discuss with
the children, which of the seeds they think will grow the best. Check and show the children
periodically.
C. Have the children estimate how long it will take the seeds to germinate. Chart the growth
of the seedlings after they sprout. Plant them in the soil when they become too large for the
jar. I have potted them in the past, and made houseplants out of them.
D. Write: "You find an odd-looking seed and plant it. Your seed grows into
_____________." Write an ending to the story.
E. Create task cards for the children to manipulate showing the stages of a seed's growth.
Children can also make their own cards to keep.
Day 5. Discuss the job of the root system.
A. Pass around enough straws and paper cups for each child.
B. Tell the children they are the plants and the straws are the roots. This is a great explanation
for the next experiment.
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11. C. Bring in celery or a carnation and show the children the power of the roots.
D. Add colored water to a glass with the celery/carnation in it, and watch for the next few
days as the celery/carnation changes colors. You might pre-start one to show what will
happen.
E. Create a word search or word puzzle using plant parts words OR allow the children to
create the puzzle and exchange with a neighbor.
F. Let the children pantomime plant growth.
Day 6. Create several activities using all the plant and seed words that they have learned.
A. Try a spelling bee, crossword or word puzzles. There are several software programs that
will easily do this.
B. Create a Seed WordBook by folding several pieces of writing paper in half and stapling it.
C. Have the children make a mini dictionary for their terms and illustrate each item.
D. Write several seed words on the chalkboard. Have the children use these words to create
silly stories.
E. Combine all the stories to write a class book. Choose several children to illustrate the
cover and back page.
Day 7. Animals and plants are partners.
A. Discuss what the world would be like without plants, Re: the desert.
B. Talk about the benefits of plants in our environment. I.e.: oxygen, carbon dioxide, cycle of
nature, food, mulch,
C. Create a chart discussing the cycle of nature.
1. What do plants get from the air?
2. How does it get into the air?
3. What do animals get from the air?
4. How does it get into the air?
D. Write stories about life in a world without plants and animals.
E. Design cartoon-like plants that have the characteristics of animals.
Day 8. All kinds of plants grow from seeds.
Finds pictures of various kinds of plants. Some plants that are food, flower and trees. Allow
the children to guess which plants contribute different ways to the earth. Create a game
allowing the children to guess what each plant is, i.e. bean tomato, marigold, watermelon, etc.
Day 9. How plants protect themselves.
A. Plants protect themselves from insects, animals, and people. Name some kinds of
protection plants have developed. i.e. thorns, spines and prickles. Poison and off-flavors.
B. Another ways plants protect themselves are through camouflage. Have the children draw
and illustrate "A Plant Fights Back"
C. Some plants don't have to worry about being eaten by animals. They eat animals instead.
One of these plants, The Venus's-fly trap, has leaves that snap shut when an insect lands on
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12. them. The leaves open up again after the insect has been eaten.
Pretend you are a Venus Flytrap. Write about the insects that you eat. Tell what they taste
like, and which insect is your favorite.
Day 10. Plant Parts We Love to Eat.
People and animals eat the fruits of some plants and the seeds of some, and the leaves of
others. Chart on the chalkboard the different parts of plants that people can eat. Then let the
children fill in as many foods that they can think of. Imagine a world without plants. What
would we eat? Write a story.
Day 11. People Need Plants.
A. What benefits do people and animals get from plants? Let the children brainstorm the
many 'things' we get from plants. Fibers, food, medicine, wood, fuel, paper, etc.
B. Have the children fold a blank piece of white art paper into eight squares. Let the children
illustrate eight different things they know we get from plants.
C. Graph all the items that the children have put on their charts. Tally which items are the
most common, unusual, etc.
Day 12. What are the problems that plants create?
A. Some plants cause us to sneeze. Weeds crowd our flowerbeds.
B. How do plants help us?
C. Write a story about one way plants help/ hurt us.
More Plant Connections
1. Sunflowers need so much sunlight they turn their heads during the day to face the sun.
Imagine that you are a sunflower. Someone has built a big building blocking out your
sunlight. What are you going to do next? What will you do to reach sunlight? How do you
feel?
2. You find an odd-looking seed and plant it. The seed grows into_______________. Write
an ending to the story.
3. List these seeds from different plants. Have the children put them in order from the
smallest to largest. Consider corn, lettuce, poppies, walnuts, marigolds, carrots, coconuts,
acorns, apples, etc.
4. Assign a Seed Collection as part of a homework project. Show the children an egg carton.
Tell them to collect one kind of seed for each chamber. Labeling can be as complex as the
children's skill level.
5. Go on a walking field trip to collect seeds and grasses from an empty field. (My school has
a field as part of the campus). Return to school and create a class display) Poetry (illustrate
and make into a class book)
My Garden
This is my garden. I'll rake it with care.
And then some flower seeds I'll plant there.
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13. The sun will shine,
And rain will fall,
And my garden will blossom and grow straight and tall.
Resources:
*The Mountain that loved a Bird-by Alice McLerran /Ill. By Eric Carle
The Tiny Seed-by Eric Carle
Titch- by Pat Hutchins
Will Spring be early? Or Will Spring be Late- by Crocket Johnson
First Comes Spring- by Anne Rockwell
Round Robin-by Jack Kent
Anna in the Garden-by Diane Hearn
The Green Man-by Gail Haley
The Pea Patch Jig- by Thatcher Hurd
Sunflower House-by Eve Bunting
A Weed is a Seed- by Feida Wolff
From Seed to Plant by Gail Gibbons
Flowers, Fruits, Seeds by Jerome Wexler
Planting a Rainbow by Lois Ehlert
The Giving Tree by Shel Silverstein
The Carrot Seed by Ruth Kraus
The Flower Alphabet Book by Jerry Pallota
The Popcorn Book by Tomie dePoala
Sunflower by Miela Ford
Audio: Evergreen, Everblue-by Raffi
Credits: Seeds and Plants by School Zone Publishing
Tina's Science Notebook by Tina DeCloux
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14. Plant Songs and
Fingerplays
Plant Songs
Do You Know the Parts of Plants? Tune: Head, Shoulders,
Knees, And Toes
Do you know the parts of plants,
Parts of plants?
Do you know the parts of plants,
Parts of plants?
All kinds of plants that grow and grow and grow.
Do you know the parts of plants,
Parts of plants?
The roots hold the plant in place,
Plant in place.
The roots hold the plant in place,
Plant in place.
The roots store food and water, too.
The roots hold the plant in place,
Plant in place.
The stem move water up the plant,
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15. Up the plant.
The stem move water up the plant,
Up the plant.
The stem brings water to the leaves.
The stem move water up the plant,
Up the plant.
The leaves soak up the sun,
Soak up the sun.
The leaves soak up the sun,
Soak up the sun.
The sun helps the plant to grow and grow and grow.
The leaves soak up the sun,
Soak up the sun.
The flower grows into a fruit,
Into a fruit.
The flower grows into a fruit,
Into a fruit.
Inside the fruit are little tiny seeds.
The flower grows into a fruit,
Into a fruit.
The Gardener Plants the Seeds (Tune "Farmer in the
Dell")
The gardener plants the seeds.
The gardener plants the seeds.
High ho the derry oh,
The gardener plants the seeds.
Second Verse: The rain falls on the ground.
Third Verse: The sun shines bright and warm.
Fourth Verse: The seeds begin to grow.
Fifth Verse: Flowers grow everywhere. OR The flowers smile at us.
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16. The Farmer Plants the Seeds (Tune "Farmer in the Dell")
The farmer plants the seeds. (put seeds in the ground)
The farmer plants the seeds.
High ho the derry oh,
The farmer plants the seeds.
Second Verse: The sun comes out to shine. (make big circle with arms)
Third Verse: The rain begins to fall. (hands flutter to the ground)
Fourth Verse: The seeds begin to grow. (children begin to rise)
Fifth Verse: The farmer digs them up. (pretend to use a shovel)
Now we'll have some to eat. (pretend to eat)
Little Seed (Tune: I'm a Little Teapot)
Here's a little seed in the dark, dark ground.
Out comes the warm sun, yellow and round.
Down comes the rain, wet and slow.
Up comes the little seed, grow, grow, grow!
This is the Way We Plant the Seeds (Tune: Mulberry
Bush)
This is the way we plant the seeds,
Plant the seeds, plant the seeds,
This is the way we plant the seeds,
Early in the springtime.
Other Verses: This is the way we dig the hole...
This is the way we put in the seeds...
This is the way we cover the seeds...
This is the way we water the seeds...
This is the way we check the seeds...
Parts of Plants Song (Tune: Muffin Man)
Oh, do you know the parts of plants,
The parts of plants, the parts of plants?
Do you know the parts of plants
That make them grow and grow?
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17. The roots, they hold the plant in place,
The plant in place, the plant in place.
The roots they hold the plant in place
Soak up food and water, too.
The stem moves water up the plant,
Up the plant, up the plant.
The stem moves water up the plant
Brings water to the leaves.
The leaves soak up the rays of sun,
The rays of sun, the rays of sun.
And help the plant make food.
The flower grows into a fruit,
Into a fruit, into a fruit.
The flower grows into a fruit, Which holds the tiny seeds.
Now you know the parts of plants,
The parts of plants, the parts of plants,
Now you know the parts of plants,
That make them grow and grow.
Green Plants Need Song (Tune:"Three Blind Mice")
Three main things, three main things,
Green plants need, green plants need.
For plants to grow and plants to thrive,
In order to keep green plants alive,
What does it take for them to survive?
Just three main things.
Plants need sun, plants need sun,
That's number one, plants need sun.
For plants to grow and plants to thrive,
In order to keep green plants alive,
What does it take for them to survive?
Just three main things.
Plants need air, plants need air,
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18. Be aware, plants need air.
For plants to grow and plants to thrive,
In order to keep green plants alive,
What does it take for them to survive?
Just three main things.
Plants need water, plants need water,
Especially when it's hotter, plants need water.
For plants to grow and plants to thrive,
In order to keep green plants alive,
What does it take for them to survive?
Just three main things.
Plant Fingerplays
Mister Carrot
Nice Mister Carrot
Make curly hair, (Hand on head)
His head grows underneath the ground (Bob head)
His feet up in the air. (Raise feet)
And early in the morning
I find him in his bed (Close eyes, lay head on hands)
And give his feet a great big pull (Stretch legs out)
And out comes his head!
Graciela Bilat