Discovery Education
Discovering Math: Beginning Measurement
Weight, time, length, cost, and mass are all things we can measure. Learners are introduced to the concepts they'll need to know before embarking on any measurement adventure. They are introduced to each type of measurement and types of...
Curated OER
Measure Up!
Discover ways to measure items without standard tools. In this measurements instructional activity, learners estimate how long certain objects are by measuring with a non-standard measuring tool. Students check their estimates with a...
Pennsylvania Department of Education
Using the Number Line to Compare
Students determine differences using a number line. In this math lesson, students use the number line to solve subtraction problems. Students solve puzzles using subtraction.
Curated OER
Hoping Backward to Solve Problems
Students use number lines to compare differences. In this math instructional activity, students use a number line to solve problems. Students predict differences and answer puzzles using subtraction.
Curated OER
Building Sets of 13 and 14
Compose and decompose sets of 13 and 14 and compare sets of each with your little learners. They use objects to construct sets of 13 and 14, record their answers, and compare sets in several different ways.