# ALEX Classroom Resources

ALEX Classroom Resources
Subject: Mathematics (3)
Title: Estimate Sums & Differences of Whole Numbers StudyJam
Description:

In this interactive activity, students will be led through steps to estimate the sums and differences of whole numbers using rounding and front-end estimation. There are teaching activities as well as practice activities available. After utilizing this resource, the students can complete the short quiz to assess their understanding.

Subject: Mathematics (3 - 4)
Title: Estimate Whole Numbers StudyJam
URL: https://studyjams.scholastic.com/studyjams/jams/math/problem-solving/psestimate-whole-numbers.htm
Description:

In this interactive activity, students will be led through steps to estimate numbers by rounding in order to make problems easier to solve. There are teaching activities as well as practice activities available. A handout that reviews the strategies taught during the activity can be printed. After utilizing this resource, the students can complete the short quiz to assess their understanding.

Subject: Mathematics (3)
Title: Determine the Missing Operation in an Equation StudyJam
Description:

In this interactive activity, students will be led through steps to create and solve equations by identifying the appropriate mathematical operation. There are teaching activities as well as practice activities available. A handout that reviews the steps taught during the activity can be printed. After utilizing this resource, the students can complete the short quiz to assess their understanding.

Subject: Mathematics (3)
Title: Solving Two-Step Word Problems
URL: https://aptv.pbslearningmedia.org/resource/ea20e285-12cc-4115-9050-e7f1afbf1d58/solving-2-step-word-problems/
Description:

In third grade, students will solve two-step word problems using addition, subtraction, multiplication, and division. For example: There were ten adults and five children at the movies. Each adult ticket costs \$8.00 and each child ticket costs \$3.00. What is the total cost of all the tickets? The video demonstrates how to solve this problem.

ALEX Classroom Resources: 4 