K12 Reader
Eratosthenes: Geographer and Mathematician
Mathematicians can be famous, too! Introduce your class to Eratosthenes with a reading passage. After they complete the passage, learners respond to five questions, some of which require opinions and others reading comprehension skills.
Curated OER
Grade 4 Geometry
For this grade four geometry worksheet, 4th graders calculate the perimeter of a square. Students explore how the area of a square can be found by multiplying the length of the square by its width.
Curated OER
Spring Themed Word Problems- Multiple Grade Levels
In these math worksheets, students complete Spring themed word problems that are leveled from grade 1 through grade 5. They link to the problems that are appropriate to their work level such as addition and subtraction for grade one, and...
Curated OER
Geometry
In this geometry worksheet, students utilize mathematical strategies to figure out which of four lines are vertical, horizontal and/or parallel.
Curated OER
Calculating the Perimeter of a Square
A quick definition and the formula for finding the perimeter of a square is provided at the top of this activity. After reading the description, 4th graders must find the perimeter of the 3 given squares by adding or multiplying. This is...
Curated OER
Grade 4 Geometry
In this grade four geometry learning exercise, 4th graders calculate the perimeter of a rectangle by figuring out the formula of the width and length of each side.
Curated OER
Calculating the Area of a Rectangle
A quick definition and the formula for finding the are of a rectangle is provided at the top of this worksheet. After reading the description, 4th graders must find the area of the 3 given rectangles by adding or multiplying. This is an...