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Mathcast 3 was on learning what a statistical question is and how to pose one. This most closely relates to Chapter 15 Section 1 where statistical question is defined and we are given all the necessary parts to posing and answering a statistical question. We also learn what data is, the types of data important to statistical questions, and how to show the data collected in various visual ways to answer the question(Sybilla Beckmann).

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MathCast 2 was on justifying the area formula for right triangles by viewing the triangle as a part of a rectangle made up of two right triangles. This most closely relates to Chapter 12 Sections 1 and 3. In Section 1, we revisit the area formula for a rectangle, and in Section 3, we learn how to justify the area formula for right triangle by thinking of the right triangle as half of a rectangle(Sybilla Beckmann).

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Grade 1 Mathematics Module 5, Topic A | EngageNY

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In Module 5 students build on their exploration and knowledge of shapes from kindergarten. In Topic A, students identify the defining attributes of individual shapes. In Lesson 1, students use straws cut at various lengths to create and then classify shapes. A list of the attributes that are common to a set of shapes is created.

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MathCast 1 was on how to find and name two-dimensional shapes including trapezoid, rhombus, and square as special rectangles based on defining attributes of sides and corners. This most closely relates to Chapter 10 Section 4 where we learn about the classification of quadrilaterals and their defining properties. These defining properties can be listed to define special quadrilaterals(Sybilla Beckmann).