Curated OER
Timeline of Tijuana Estuary Populations
Students examine the various populations that have made their home in the Tijuana Estuary. In groups, they read an article and note the name of each population, facts and what tools they used in a journal. They use colored notecards to...
Curated OER
Math All Around Us
Students identify real world problems from given story problems. In this story problem lesson, students find places, events or items in the school environment that can be used to create story problems. Students take a picture of the...
Alabama Learning Exchange
Alex: Search the Perimeter and Secure the Area
This lesson will not only help students compare and contrast the concepts of area and perimeter, but it will also move toward the concept that area is maximized while minimizing perimeter with a square.
Illustrative Mathematics
Illustrative Mathematics: 8.g Two Triangles' Area
In this task, 8th graders are given the dimensions of two isosceles triangles and are asked to compare their areas. They must draw them and use the Pythagorean Theorem and the triangle area formula to solve the problem. Aligns with 8.G.B.7.
Illustrative Mathematics
Illustrative Mathematics: 8.g Circle Sandwich
Eighth graders are presented with a drawing of a large square inscribed by a circle which is itself inscribed by a second square. They are asked to find the area of the circle outside the smaller square and compare it to the area of the...
Illustrative Mathematics
Illustrative Mathematics: 6.g Same Base and Height, Variation 1
Make the following triangles on a geoboard. Remember that the pegs are equally spaced in a square grid. Compare the areas of the triangles. Aligns with 6.G.A.1.