# Lesson Plans Sum

Estimate Sums by Rounding

In this case, we will be finding the sum of money amounts. We are going to estimate the sum of these two values. Here are the steps to working through this problem:. Lesson Printable Materials - Worksheets. Print out the teaching lesson pages and exercise worksheets for use with this lesson:. Students learn basic consumer money math. Lesson Excerpt: What does it mean to estimate? Two numbers have a sum of 8 and a difference of 2.

Two numbers have a sum of 4 and a difference of 2.

Two numbers have a sum of 7 and a difference of 5. Two numbers have a sum of 8 and a difference of 6. Two numbers have a sum of 10 and a difference of 8. Two numbers have a sum of 15 and a difference of 1. Two numbers have a sum of 12 and a difference of 6.

Two numbers have a sum of 19 and a difference of 1. Two numbers have a sum of 13 and a difference of 1.

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Two numbers have a sum of 14 and a difference of 0. Two numbers have a sum of 12 and a difference of 4. Two numbers have a sum of 17 and a difference of 1.

Two numbers have a sum of 16 and a difference of 0. Two numbers have a sum of 15 and a difference of 3. Two numbers have a sum of 16 and a difference of 2. Two numbers have a sum of 20 and a difference of 4. Two numbers have a sum of 16 and a difference of 6. Two numbers have a sum of 19 and a difference of 9. Two numbers have a sum 18 of and a difference of Two numbers have a sum of 17 and a difference of Two numbers have a sum of 19 and a difference of 3. Published in: Education.

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Views Total views. Actions Shares. Embeds 0 No embeds. No notes for slide. Lesson plan - angle sum of triangle 1. Math — lab method 2.

Discovering method 3. Short description of the content: In this lesson students will discover the sum of the interior angles in a triangle in different ways: By measuring the interior angles of several triangles with a protractor and calculating the sum By tearing off the 3 corners of one triangle and rearranging them or by cutting out 3 identical triangles and rearranging them By using GeoGebra software PDF - LESSON PLAN 2.

Each of them should decide in its table group what type of triangle will draw.

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Save Changes. If students only used one method to find the measure of central, interior and exterior angles, have them think about how to use a different method to find these angles. Ask students to disprove their algorithm by looking for a polygon that does not fit the mold. Students will practice these skills in their independent work. Rate It!

Each person should draw a different one e. On a piece of plain white paper, draw a triangle. Use a protractor to measure each angle of the triangle. Now trade your paper with your neighbor.

## Sums of Ten Pyramid

Trade papers back so that you now have your own paper. Add all of the angle measures together. Compare your total with your neighbor. Did you get the same angle sum? If so, were your angles the same measure?