This document discusses proportions and ratios. It explains how to write ratios in simplest form by reducing fractions and how to use cross-products to determine if ratios form a proportion. Examples are provided to check different ratios. The homework assigned is to complete problems from pages 285-287 of the textbook.
4. RATIOS
• Should be written in simplest form
• 4 to 2, or 4:2 must be reduced to 2:1
• Is 3:18 in simplest form?
• Can compare 3 numbers
• 3 sides of a triangle a:b:c
11. HOMEWORK
• Get a poster board for next week
• Bring rulers
• Page 285
#12 – 24
#28 – 34 (even)
12. LESSON PLAN
Intro- Not all triangles are congruent. We are going to add
similarity, which is a lower level of comparison.
Standards- 5.1
Supplies – slides, whiteboard, handouts
Essential Questions- slide 2
Input-slides 3, 4, 6
Guided Practice – slides 5, 7, 8, 9, and 10
Independent Practice – slide 11
Assessment: Quiz and Chapter Test