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AreaOfTriangles ICON
Geometry

Area of Triangles

3-5, 6-8

To find the area of a triangle, try to make a parallelogram using a copy of the triangle.

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Data Analysis and Probability

Handshakes

3-5, 6-8

When the nine justices of the Supreme Court meet, they greet one another with a handshake to show harmony of purpose, even though their views may differ. How many handshakes occur? In general, how many handshakes occur when there are n people?

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Number and Operations

Using an Elevator to Evaluate Signed Number Expressions

6-8, 9-12

Using an Elevator to Evaluate Signed Number Expressions Using the idea of an elevator moving up and down, students will be given a small set of rules to add and subtract signed integers. The idea behind the method of adding and subtracting signed integers offered in these lesson is that the number of rules that s

CanYouKenKen ICON
Number and Operations

Can You KenKen?

3-5, 6-8
The objective of this lesson is to use combinations to solve KenKen puzzles. An early solution strategy is for students to guess and check and use logic-based elimination. This lesson builds on those strategies by having students systematically list all possible combinations within each cage, the darkly outlined sections of the puzzle.
Dynagraphs
Algebra

Geogebra:Dynagraphs

6-8, 9-12

Explore relationships between inputs and outputs by manipulating interactive double number lines.

This interactive is optimized for your desktop and tablet.   

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Geometry

Isosceles Triangle Area

6-8
Explore when an isosceles triangle obtains its maximum area.
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Geometry

Pythagorean Review

6-8

Review and explore the Pythagorean Theorem.

 

Jan2020 Cover
Data Analysis and Probability

Is the Last Banana Game Fair?

6-8
This lesson is based on the MTLT article, “ Is the Last Banana Game Fair?” by Patrick Sullivan. The lesson engages students in simulations to calculate experimental probabilities and confirm those results by examining theoretical probabilities. 
Feb2021 Tiny Cover
Data Analysis and Probability

Revealing the Story in Hydrographs from Hurricane Harvey

3-5, 6-8
This lesson is based on the MTLT article, “Making Meaning of Numbers from a Historic Storm" by Ming Tomayko. The lesson uses media coverage of a natural disaster to support students' development of quantitative literacy.  
March 2021 Tiny Cover
Number and Operations

The Golden Ratio and the Fibonacci Sequence in Popular Media

6-8
This lesson is based on the MTLT article, “Incorporating Popular Media to Engage Students” by Michelle Meadows and Joanne Caniglia. The lesson engages students in the beauty and power of the Golden Ratio using media to spark curiosity!