Curated OER
Number Sense
First graders practice rounding 4 digit numbers using place value concepts. In this estimating sums and differences lesson, 1st graders explore clustering, rounding, and front end estimation as methods for rounding decimals.
Curated OER
Data Scavenger Hunt
Eighth graders discuss how data is collected and participate in data collection through a survey. They complete a scavenger hunt on the Internet to gain understanding of the data measures mean, median, mode, and range.
Curated OER
Add & Subtract Fractions w/Unlike Denominators, 2
Learners use several examples to create a method for adding and subtracting fractions with unlike denominators. They present these methods to the class and then practice applying methods to sample problems.
Curated OER
Pythagorean Theorem Investigation
Eighth graders investigate the Pythagorean Theorem and practice applying the theorem to various triangles. Finally, in the next lesson in the sequence, 8th graders create a song or a story to help them remember the Pythagorean Theorem.
ClassFlow
Class Flow: Estimation
[Free Registration/Login Required] After this lesson, students will be able to solve problems using a variety of mental math strategies.