Curated OER
Activity: Estimate Time
In this estimating time review worksheet, students practice their estimation skills as they estimate how many times they can do 3 activities in 1 minute. Students check their work and then identify things that take them 30 seconds, 5...
Curated OER
Comparing Distances
Students practice estimating distances by analyzing a map. In this length measurement lesson, students view a map with a distance key and use their measurement skills to estimate the distance between two cities. Students utilize an...
Curated OER
Standard Units of Measure
Learners explore linear measurement. They choose appropriate measuring tools, measure three classroom items, and record their results. A class discussion ensues in which everyone decides the best way to present their data.
Curated OER
Decimals: Worksheet 2
In this decimal worksheet, students solve a total of 31 decimal problems including: writing decimals, determining the smaller of 3 decimals, determining place value, rounding, filling in missing numbers and word problems.
Alabama Learning Exchange
Jelly Beans Add Up
Students explore counting, sorting, and graphing skills. In this data analysis lesson, students sort jelly beans by color, count the jelly beans, and create a bar graph of the jelly beans according to color.
Curated OER
There Was An Old Lady...
Students participate in various activities using the story There Was An Old Lady Who Swallowed a Fly. In this reading fluency lesson, students read the story and then practice comprehension, fluency, and writing. An estimation activity...
Lawrence Hall of Science
The Math Page: Skill in Arithmetic: Table of Contents
This website from The Math Page explains some helpful hints about how to do mental math.
Illustrative Mathematics
Illustrative Mathematics: 3.nbt, 4.nbt Rounding to the Nearest 100 and 1000
This task builds off of the skill of rounding to the nearest ten and hundred in third grade. Aligns with CCSS.Math.Content.3.NBT.A.1 Use place value understanding to round whole numbers to the nearest 10 or 100.
Lawrence Hall of Science
The Math Page: Skill in Arithmetic: The Meaning of Multiplication: Mental Calculation
If you are looking for a website that explains and defines the basics of mental multiplication with helpful hints then you have arrived at an excellent resource. There are even practice problems at the very end of the lesson.