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Feb2020 Tiny Cover
Data Analysis and Probability

Model Eliciting Activity (MEA)

3-5, 6-8
This lesson is based on the MTLT article, “Developing Statistical Modeling with Helicopters” by Katie Makar, Sue Allmond, Helen M. Doerr, and Robert C. delMas. This lesson engages students in a model eliciting activity to investigate how long a paper helicopter stays in the air.
Jun2021 Tiny Cover
Number and Operations

Make One (Face-to-Face)

This lesson is based on the MTLT article, “Playing with Fractions” by Juli K. Dixon, Treshonda Rutledge, Jennifer C. Caton, and Edward C. Nolan. In this lesson students model fractions with a fraction kit and reason about adding fractions with unlike denominators.
2022March Cover
Number and Operations

Getting Positive About Integer Arithmetic

In this lesson, we share a series of tasks that can support students to order and compare signed numbers and develop multiple ways to reason productively about integer addition and subtraction.
2022December Cover
Number and Operations

Neutralizing Reactions and Inverses

In this lesson, students will integrate science and math, exploring how neutralization reactions can help us understand that the sum of any number and its additive inverse is zero. 

Frustration: Analyzing a Card Game with Probability

This lesson engages students in the joy of mathematical inquiry through a game, while building number sense, understanding of uncertainty, statistical reasoning, and discourse skills. Students will explore the ideas of experimental and conditional probability through the card game, Frustration
Number and Operations

Using Number Talks to Compare Fractions


Based on an MTLT article, the authors implement a coordinated series of well-connected number talks that allow for students to make sense of a variety of strategies that provide “flexibility” in their mathematical reasoning when comparing fractions. 


Crack the Code: Algebraic Generalizing with Manipulatives

Students us linking cubes and color rods to generalize patterns through differentiated game play.