This document provides an overview and agenda for a 2nd grade math expressions unit covering tools, strategies, routines, assessments, and pacing. It includes details on using the 120 poster, money flip chart, number path, and secret code cards for daily routines. It outlines the key ideas, teaching strategies, tools, and non-essential lessons for each unit 1-9. The goals are to explore addition and subtraction concepts, understand place value, add and subtract multi-digit numbers, and work with time, money, and data. Computational fluency is emphasized through daily quick practice activities.
Web & Social Media Analytics Previous Year Question Paper.pdf
2nd Grade Mx Nov 09
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3. Materials Note TE xvii This page will let you know the Math Expressions materials and what to use if they did not come in your kit or where to make the copies Only the * indicates what is unique The rest of the manipulative contents are not specific to the program 3
4. Daily Routines Done at calendar time. Tools 120 Chart Finger Flashes Money Flip Chart Bottom of Money Flip Chart (Do we have a ten yet?) Secret Code Cards Number Path Calendar Routine Comparing 2-Digit Quantities (unit 3 & 4) Math Mountains for 100 or 2-Digit Numbers (unit 5 & 6) Telling Time (unit 7 & 8) Quarters and Other Coins (unit 9 & 10) Making Change and Counting Coins (unit 11 & 12) 2’s 3’s, and 4’s Count-Bys (unit 13 & 14) Plan for First 90 Days of School Pg. xxiii
5. Using the 120 Poster Student Leader 1 draws a new circle Previous total 26: I am adding 3. So, 26 plus 3 is 29. Do I have a new 10? –no 29 = 20 + 9 Previous total 29 I am adding 3. So, 29 plus 3 is (circling the numbers) 30, 31, 32. Do I have a new ten? Yes! So I am going to erase all of the circles on these 20’s and cap the new 10 at the bottom 32 = 30 + 2 The focus is on the answer, the decade number, and ones 5
6. 120 Poster Continued Count to the New Total Less than 20 Student Leader 1 leads the class and points to each number to reach the new total After 20 - Finger Flashes Student Leader 1 moves the pointer down each column by tens and ones Children do the finger flashes in unison 10, 20, 30, 40, 50 freeze 51, 52 Focus remains on the answer, decade numbers, and ones 6
7. 120 Poster Continued Larger Numbers Previous total was 112 I am adding 7. So, 112 plus 7 (circling the numbers as saying them) 113, 114, 115, 116, 117, 118, 119. Do I have a new 10? No (saying as writing) 119 = 110 + 9 Previous total was 119 I am adding 8. So, 119 plus 8 (circling the numbers as saying them) 120, 121, 122, 123, 124, 125, 126, 127. Did I make a new 10? YES! I will cap off the ten (saying as writing) 127 = 120 + 7
8. Using the Money Flip Chart Student Leader 2 removes 7 sticky note representing the addition of 7 penny Previous total 21 pennies I am adding 7 pennies. Will I make a new 10? – no. 21 plus 7 is 28 Removing the sticky note and putting it in the rectangles at the bottom of the Money Flip Chart We now have 8 ones so I’ll erase the 1 and write a 8 Write - 10 plus 10 plus 8 = 28 Say - That’s 2 tens and 8 ones equals 28 Write 21 + 8 in vertical form in the upper right corner of board Write the new partner of 10 to the right of the sticky notes The focus is on anchors of ten, ones, and the answer The ten rectangles reinforces the anchor of 10 visually 8
9. Money Flip Chart Continued New Ten Previous total 28 pennies I am adding 7 pennies. Will I make a new 10? – Yes! So I’ll flip over the cover on the next column so we can see the pennies. 28 plus 7 is 35 (take off the last sticky note). I have a new ten so I’ll write it below. So, 28 plus 7 is 29, 30, 31, 32, 33, 34, 35 (touching as saying- leave finger on 35) I need to cover the rest of the pennies. How many do I need to cover? 5 Write 5 below the 40 column Write 10 + 10 + 10 + 5 = 35 Write 30 + 5 in vertical form in the upper right corner of board Write the new partner of 10 to the right of the sticky notes The focus is on anchors of ten, ones, and the answer 9
10. Money Flip Chart Continued If you end on a decade number Next Day Student Leader 2 Flip over the next column of pennies and cover all the ten pennies with sticky notes with all children Continue the routine – previous total 30 add 3 The focus is on anchors of tens, ones, and the answer 10
11. Money Flip Chart Continued Numbers over 100 The dollar bill cover is flipped to show dollar bills to the left of the coin strips 100 + 10 + 10 + 4 = 124 Coin Strips In Cycles B and C (see blue box pg xxiii), dime Strips are flipped over to replace 10 pennies or 2 nickels and Nickel Strips are flipped over to replace 5 pennies. Cycle A – Use pennies and dollars only Cycle B – Use pennies, dimes, and dollars Cycle C – Use pennies, nickels, dimes, and dollars 11
12. Number Path Number Path: Drawing circles and lines Add same number as money & 120 poster. Circle number being added. Draw a line when 10’s are made. Leave it on display. This part discontinued when the total exceeds 100. Proof Drawings (Quick Tens and Ones & show 5-groups) Erase old drawing and leave new total below (ready for next day). Numbers over 100- Quick Hundreds (squares) are also used. Focus is bridging the abstract representation to the pictorial representation
13. Number Path You may choose to drop the Money Routine during Units 9 and 11 in order to focus more on the coin counting routines for those units. If you do this, you can return to this routine again during Unit 13.
14. Secret Code Cards Show New Total 30 (show 30 card) plus 2 (show 2 card). Class responds- 30 plus 2 makes (puts 2 card over the 0) 32. New Total 30 (decade number) 30 now show the 30 card Class responds 3 tens make 30 Focus is on the abstract decade numbers and ones.
16. Based upon NCTM’s Principles and Standards for School Mathematics (2000) “Fluency refers to having efficient, accurate, and generalizable methods (algorithms) for computing that are based on well-understood properties and number relationships.” NCTM, 2000, p. 144 It is the immediate access to a strategy that will get a student to a correct answer, not the immediate access to the answer…which is automaticity! What is Computational Fluency?
24. UNIT 1 Big Ideas Explore Addition and Subtraction Concepts Break-Apart Numbers ≤ 10 Add and Subtract Using 10 Relate Addition and Subtraction Understand Equations and Inequalities
32. Greater/Less ThanTools Fingers Penny Strips and Coins Math Mountains Partner Houses Secret Code Cards Count on Strategies Cards Red/Blue, Yellow/Orange, Green Yellow & Blue Math Mountain Cards Number Line Non-Essential Lessons 17, 22, 23 Quick Quiz 5
33. Unit 2 Big Ideas Linear Measurement of 2-D Shapes
70. Math MountainsSubtraction Methods pg 607J-607K See pg 620 See pg 630 See Expanded Method pg 637 Non-Essential Lessons 10, 15, 16, 17 Quick Quiz 3
71. Call or email with any questions Laura Chambless 810-455-4005 chambless.laura@sccresa.org www.protopage.com/lchambless
Notes de l'éditeur
Teens, Tens, and Dimes 1:5 pg 28Break-Aparts 1:6 PG 37Introduce Math Mountains 1:6 pg 42Introduce Partner Houses 1:8 pg 52Red Count-On Cards 1:9 pg 60Yellow (+) and Orange (-) Count on Cards 1:10 pg 68 and 71Ways to Record Make a Ten Methods 1:12 pg 86Introduce Green Make a Ten Card 1:13 pg 92Introduce Blue make a Ten Card 1:15 pg 108Introduce Math Mountain Cards 1:16 pg 112Introduce Number Paths 1:17 pg 118 (Non-Essential)Introduce Number Line 1:17 pg 119 (Non-Essential)Define Equation & Introduce the Is Not Equal to Sign 1:18 pg 124, 125Introduce Squiggles (partners) 1:19 pg 134Greater Than/Less Than 1:21 pg 144
Properties of Squares, Rectangles, and Triangles 2:2 pg 174,175,176Perimeters of Squares and Rectangles 2:3 pg 180Perimeter of Triangle 2:4 pg 186Explore Angles 2:4 pg 188
Introduce Venn Diagram 3:4 pg 214Introduce Problems with not enough information 3:8 pg 240Introduce Problems with extra information 3:8 pg 242
Green Make-a-Ten Card 5:4 pg 333Red Count-On Cards 5:4 pg 336Show All Totals methods 5:10 pg 375Introduce New Groups Above method 5:11Introduce Sequences 5:17 pg 416Break Apart One Hundred 5:18 pg 424
Introduce Time and Clocks 6:1pg 446Elapsed Time 6:4 pg 470
Horizontal & Vertical Picture Graph 7:1 pg 489-490Introduce Key to Graph 7:2 pg 496Tally Marks 7:7 pg 522
Subtraction Methods pg 607J-607KFinding Unknown Partners 9:3 pg 620Using Dollars to Visualize Ungrouping and Rewriting a Hundred 9:3 pg 622Ungrouping – Subtraction 9:4 pg 630Introduce the Expanded Method 9:5 pg 635Subtract from 200 9:7 pg 650Subtract with Zeros 9:9 pg 664Introduce the Ungroup First Method 9:5 638