## Search Results ### 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. ### Make One (Face-to-Face)

3-5
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. ### 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. ### Neutralizing Reactions and Inverses

6-8
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

6-8
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 ### Using Number Talks to Compare Fractions

3-5

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

6-8
Students us linking cubes and color rods to generalize patterns through differentiated game play.

### Math Metaphors

6-8, 9-12
In this lesson, students create metaphors to capture and explore their experiences as learners of mathematics with respect to their identity, sense of agency, and emotions.

### Pythagorean Theorem with Technology

In this lesson, students will extend the Pythagorean theorem by investigating the relationship between the areas generated by the lengths of the sides of a right triangle, investigate whether the Pythagorean theorem still holds if the shapes are not squares, and investigate whether the Pythagorean theorem still holds if the shapes are not regular.

### Patterns and Functions

Pre-K-2
In this lesson, students will explain their understanding of patterns using their home languages.