CK-12 Foundation
Ck 12: Elem Math: Determining Unit Shapes From Tessellations
[Free Registration/Login may be required to access all resource tools.] Students watch a video to determine unit shapes from a tessellation and then take an assessment to test their knowledge.
Louisiana Department of Education
Louisiana Doe: Louisiana Believes: Eureka Math Parent Guide: Addition and Subtraction of Length Units
A guide to support parents as they work with their students addition and subtraction of length units.
Khan Academy
Khan Academy: Counting Unit Squares to Find Area Formula
This tutorial includes a video, questions and explanations around using unit squares to see why multiplying side-lengths can also find the area of rectangles.
Illustrative Mathematics
Illustrative Mathematics: G Gpe, G Co, G Srt Unit Squares and Triangles
In this task, students are shown three unit squares and two line segments connecting two pairs of vertices. They are asked to find the area of a triangle formed by intersecting lines. They can solve it using coordinate geometry or...
Better Lesson
Better Lesson: Using Area as an Architect (Stations Day 1)
In this multi-day activity, 3rd graders make 3 different models of an orphanage floor plan using Google Drawing, Virtual Graph paper, and a construction of rectilinear shapes, to calculate the area of each room using units square.
Math2
Math2
This is a site for students and teachers of all grade levels. If you are looking for math tables, general information about math topics, or you would like to ask a question, this is the site to visit.
Other
Ohio Department of Education: Fifth Grade Achievement Test (Practice Test) [Pdf]
Half-length practice test for the third grade OAT (Ohio Achievement Test). The test includes 17 multiple-choice and 3 open-response question dealing with topics such as measurement (unit conversion, time), geometry (volume, area), data...
Khan Academy
Khan Academy: Understanding Area
Compare the amount of unit squares that cover figures. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video tutorial, or receive hints related to the concept of area.
Scholastic
Scholastic Instructor: Geometric Quilts
Find out how quilting and math go hand in hand when you visit this comprehensive resource. This resource provides a lesson plan for integrating geometry concepts with quilt making.
Khan Academy
Khan Academy: Create Rectangles With a Given Area
Practice finding the area of rectangles by counting unit square. Create rectangles with a given area by covering unit squares. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video...
Soft Schools
Soft Schools: Perimeter Quiz
Students take a quiz assessing knowledge of perimeter and units of perimeter. The quiz consists of eight questions, and a results summary is shown at the end.
Khan Academy
Khan Academy: Halves and Fourths
In this exercise, students practice identifying halves and fourths. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.
Khan Academy
Khan Academy: Halves and Fourths
Practice dividing shapes into 2 or 4 equal sections. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Khan Academy
Khan Academy: Compare Size
Practice comparing 2 objects to see which is bigger, smaller, taller, shorter, or longer. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.