EngageNY
Pythagorean Theorem, Revisited
Transform your pupils into mathematicians as they learn to prove the popular Pythagorean Theorem. The 16th activity in the series of 25 continues by teaching learners how to develop a proof. It shows how to prove the Pythagorean Theorem...
Curated OER
Complete The Pattern
Students are introduced to various geometric and numeric patterns. In groups, they work together to determine the next object or number in the pattern. They record their answers on a worksheet and create their own pattern to give to a...
Curated OER
Comparing Fractions
Students investigate concepts of working with fractions. They compare different fractions and put them in chronological order. The quantities are compared as either being larger or smaller also.
Curated OER
Finding Discount and Sale Price
Seventh graders solve real-life problems involving sales tax, discount, and simple interest. They find the amount of discount. In groups, 7th graders examine a sales advertisement. Given a budget, they choose purchases, and figure the...
Curated OER
It Counts
Learners explore one to one number correspondence. In this early math lesson, students make observations about and classify plants in order to gain an understanding of using numbers to describe their world.
Curated OER
Quadrilateral within Quadrilaterals
Students investigate the properties of quadrilaterals. For this geometry lesson, students solve problems dealing with construction and designs. They work with quadrilaterals, midpoints and parallelograms.
Curated OER
Spending Spree
Students collect objects to use in a classroom store. In groups, they must place a value on each object and take turns spending their fake dollar in the store. They predict how much they can buy and use addition and subtraction to...
EngageNY
Classification of Solutions
Is there one, none, or more? Through discussion or activity, scholars find the properties of an equation that will determine the number of solutions. They then use the properties discovered to figure out the number of solutions...
Curated OER
Writing Equivalent Fractions
Fifth graders work to find the fractions that are equal to one another. They use a visual pie graph to show different values. Students are able to see how fractions can look different, yet have the same value.
Curated OER
Identify Plane Shapes and Solid Shapes
First graders explore the math concept of geometric shapes. In this plane shapes and solid shapes lesson, 1st graders examine visual examples. Students also practice solving problems that their instructors model.
EngageNY
Linear Equations in x
What does it mean to solve an equation? The resource revisits the concept of making a linear equation true. Classmates use algebraic methods to transform sides of equations to expressions with fewer terms. They use substitution to...
EngageNY
Ratios II
Pupils continue the study of ratios by creating ratios from a context. The contexts present more than two quantities, and scholars create contexts that match given ratios.
EngageNY
Ordering Integers and Other Rational Numbers II
Individuals build on prior knowledge to order a set of rational numbers from least to greatest or greatest to least. As part of the instructional activity, they order rational numbers written in different forms.
EngageNY
The Opposite of a Number
It's opposite day! The fourth installment of a 21-part module teaches scholars about opposites of integers and of zero. Number lines and real-world situations provide an entry point to this topic.
EngageNY
Describing Variability Using the Interquartile Range (IQR)
The 13th lesson in a unit of 22 introduces the concept of the interquartile range (IQR). Class members learn to determine the interquartile range, interpret within the context of the data, and finish by finding the IQR using an...
EngageNY
Comparing Ratios Using Ratio Tables
Decide which concentration of mixtures is the strongest. Pupils use tables to compare ratios involved in mixtures. They use two methods to make the comparisons — by finding equivalent values within the tables or by comparing the...