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Math Content Strand

Proportions

Photo: classroomIt's time to see if the students are ready to tackle our tree-trunk problem. Can they really make the leap from gum and toys to the age of a tree?






Video Case Study Activity

Click on the link below to find out...

Video Case Study Activity Proportions (1 minute)
Helen Barney: Barney 03

Assessment Activity

Assessment 3: Proportions

Question:

Solve this same question by setting up and solving a proportion:
Given that a 10 year old tree has a diameter of 60 inches, how old is a tree with a 24 inch diameter?

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