1. How do you find the rule in a reducing pattern? For example: Find the Rule. What are the next 4 steps: 50, 40, 31, 23, 16…..

2. In this lesson you will learn about determining the rule in patterns that decrease by using a table.

3. Let’s Review Steps and Rules 15, 13, 11, 9….. - 2- 2- 2- 2- 2- 2- 2- 2 Ste p 1 Ste p 2 Ste p 3 Ste p 4 Ste p 7 RULE

4. Let’s Review A Common Mistake When finding the rule in a pattern, don’t assume all patterns increase. 18, 15, 12, 9... - 3- 3- 3- 3- 3- 3- 3- 3

5. Let’s Review Core Lesson Use a table to check for the rule being used on the pattern. 18, 15, 12, 9... - 3- 3- 3- 3- 3- 3- 3- 3 Step 1 Step 2 Step 3 Step 4 Step 5 Step 6 Step 7 1815129 -3-3 -3-3-3-3-3-3 Ste p 1 RULE -3-3-3-3-3-3 630

6. Let’s Review Core Lesson Find the rule: 50, 40, 31, 23, 16… Step 1Step 2 Step 3 Step 4 Step 5 Step 6 Step 7 Step 8 5040312316 RULE Step1 -10 - 10- 9- 9- 8- 8- 7- 7 Step2 -9Step3 -8 Step4 -7Step5 -6 Step6 -5 Step7 -4 1051 As the step increases, the amount subtracted reduces.

7. In this lesson you learned about finding the rule for decreasing patterns by using a table.

8. Let’s Review Guided Practice Find the rule. Find the next 3 numbers 33, 28, 23, 18….. Step 1Step 2 Step 3 Step 4 Step 5 Step 6 Step 7 33282318 RULE - 5- 5- 5- 5- 5- 5- 5- 5 3 step1-5 step2-5step3-5step4-5step5-5 8 step6-5 13

9. Let’s Review Extension Activities Find the 7 th number. 50, 48, 46, 44… Describe how you solved for the 7 th step number.

10. Let’s Review Extension Activities Find the next four numbers in the pattern. 42, 36, 30, 24…

11. Let’s Review Quick Quiz What is the the next number in the pattern? 12, 10, 8, 6… A) 2 B) 16 C) 20 D) 4 What are the next two numbers in this pattern? 100, 90, 81, 73…. A) 70, 80… B) 66, 65… C) 66, 60 D)55, 20