# Tag: shows ### Circumference – Lesson 9.1

This lesson shows you how to use circumference to solve problems. Read more: youtube.com ### Ordering of Real Numbers – Lesson 1.3

This lesson shows how to order numbers (fractions, decimals, irrational, etc). Read more: youtube.com ### Scientific Notation with Positive Powers of 10 – Lesson 2.2

This lesson shows how to write very large numbers in Scientific Notation. Read more: youtube.com ### Area of Quadrilaterals – Module 13.1

This is a fun lesson that shows how to find the area of parallelograms, rhombuses, and trapezoids. Read more: youtube.com ### Medians of Triangles – Module 23.3 (Part 1)

This lessons shows you what the medians are of a triangle, giving us the centroid. We also use the Centroid Theorem to calculate lengths. Read more: youtube.com ### HL Triangle Congruence – Module 21.3

This lesson shows how the HL Theorem works, with right triangles. Read more: youtube.com ### Break Apart 3-Digit Addends – Lesson 6.2

This lesson shows how to break apart 3-digit numbers into hundreds, tens, and ones. Then we add each group to get a whole. Read more: youtube.com ### Algebra – Make a Ten to Add – Lesson 3.3

This shows show to break apart numbers to make ten. 10 + any number is easier to add. Read more: youtube.com ### Algebra – Relate Addition and Subtraction – Lesson 3.5

This lesson shows how addition and subtraction are related. Read more: youtube.com ### Break Apart Ones to Add – Lesson 4.1

This lesson shows how to break apart ones to add easier numbers together. Read more: youtube.com