The Student Mathematician’s Journal is a unique feature of our Project A3 series. It is modeled after the successful use of these journals in our award-winning Project M3 series. In these journals, the students are asked to reflect on what they have learned and write about it.
Level 3-4 is divided into three activity sect
Just as a young pup can transform into a beautiful fox, changes big and small happen around us all the time. How does the grass change? How can a stone wall change? What changes happen to water in a lake?
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In this unit, students are introduced to ratios, rates, proportional reasoning, similarity and congruence. Students explore ratio as a comparison of two quantities. They discover that if the ratio between the corresponding side lengths and angle measures of two figures is 1:1 (i.e., the measures are identical), then the geometric figures are congruent. They learn that for two figures to be similar, their corresponding side lengths must be in proportion and their corresponding angles must be congruent. Students also explore the relationship between congruence and similarity, learning that al