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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….. In this lesson you will learn about determining the rule in patterns that decrease by using a table. Let’sReview Review Let’s Steps and Rules Ste p1 Ste p2 Ste p3 Ste p4 15, 13, 11, 9….. RULE -2 -2 -2 -2 Ste p7 A Common Let’s Review Mistake When finding the rule in a pattern, don’t assume all patterns increase. 18, 15, 12, 9 ... -3 -3 -3 -3 CoreReview Lesson Let’s Use a table to check for the rule being used on the pattern. 18, 15, 12, 9 ... Ste p1 RULE -3 -3 Step 1 Step 2 Step 3 Step 4 18 15 12 -3 -3 -3 -3 -3 9 Step 5 6 Step 6 3 Step 7 0 -3 -3 -3 -3 CoreReview Lesson Let’s Find the rule: 50, 40, 31, 23, 16… - 10 RULE -9 -8 -7 Step 1 Step 2 Step 3 Step 4 Step 5 Step 6 Step 7 Step 8 50 40 31 23 16 10 5 1 Step1 -10 Step2 -9 Step3 -8 Step4 -7 Step5 -6 Step6 -5 Step7 -4 As the step increases, the amount subtracted reduces. In this lesson you learned about finding the rule for decreasing patterns by using a table. Guided Practice Let’s Review Find the rule. Find the next 3 numbers 33, 28, 23, 18….. -5 RULE -5 -5 -5 Step 1 Step 2 Step 3 Step 4 Step 5 Step 6 Step 7 33 28 23 18 13 8 3 step1-5 step2-5 step3-5 step4-5 step5-5 step6-5 Extension Let’s ReviewActivities Find the 7th number. 50, 48, 46, 44… Describe how you solved for the 7th step number. Extension Let’s ReviewActivities Find the next four numbers in the pattern. 42, 36, 30, 24… Quick Quiz Let’s Review 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