In this triangle congruence worksheet, students select the postulate that is being illustrated to prove congruence between triangles. The worksheet is self-scoring. Once students select the "check your work" link, they are given their...

Students will determine if triangles are congruent and state the appropriate congruence theorem. In this geometry lesson, students will determine what information is needed to determine if a pair of triangles are congruent using ASA,...

Students will determine if two triangles are congruent and which property is used. In this lesson on right triangles, students will determine what additional information is need to make a pair of triangles congruent.

Students explore animal characteristics by creating illustrations. In this animal identification lesson plan, students read a list of animal descriptions which they draw using crayons or colored pencils. Students view their drawings and...

In this strategy worksheet, students read about opinions and their proof, then use a "column note" graphic organizer to write an opinion on the left, and the support, or proof of the opinion on the left.

In this verifying angle relationships activity, 10th graders solve and prove various types of problems related to the verification process of various angle relationships. They complete each of the two proofs shown step-by-step, giving a...

In this congruent triangles worksheet, 10th graders solve 6 various forms of problems that include a proof and a word problem. First, they draw and label triangles and indicate the additional pairs of corresponding parts that would have...

In this proofing/editing activity, 5th graders practice their proofing skills by reading eight sentences to find the one word that does not need to be in each sentence.

Young scholars examine different materials and design options that can affect the durability of a building.  In this investigative lesson students conduct several earthquake experiments. 

Students explore recent breakthroughs in H.I.V. and AIDS research, as well as research various epidemics that have devastated the world population at various points in history.

Your mathematicians will examine several conjectures regarding even and odd functions and investigate a formal proof of the conjectures using CAS. 

In this proofing/editing worksheet, students practice their editing skills by reading eight sentences to find the one word in each sentences that is not needed.

In this proofing/editing worksheet, 5th graders practice their editing skills by reading eight sentences to find the one extra word that is not needed in each sentence.

In this proofing/editing worksheet, 5th graders practice their editing skills by reading eight sentences to find the one extra word not needed in each one.

In this proofing/editing worksheet, 1st graders read ten sentences to determine if they are correct or have mistakes in them. Students write yes if they are correct or no if they aren't at the end of each one.

In this geometry learning exercise, 10th graders explore triangle properties, including the sum of the measures of the angles of a triangle, the triangle inequalities, properties of isosceles triangles, properties of congruent triangles,...

In this geometry worksheet, students identify the different properties to represent a given statement. They use proof to show how they arrived at their answer. There are 5 questions with an answer key.

Take a walk through time, 1852 to 2005, following the mathematical history, development, and solution of the Four-Color Theorem. Learners take on the role of cartographers to study a United States map that is to be...

Eighth graders build a structure that is able to withstand a simulated earthquake. They research earthquakes, earthquake measurement, and society's preparation for and reaction to them. Pupils build models and present them to the...

Students research the evidence for prehistorically formed methane hydrates contributing to global warming. In this climate change lesson, students work in groups to research methane hydrates, global warming, The Cambrian Explosion, and...

In this algebra worksheet, 11th graders prove that an equation is true through multiplication, addition and multiplication by dividing factors. Students verify through 3 different processes that 7x13=28.

In this triangle theorems worksheet, students identify the theorem used to prove the specified triangular relationship. Students are shown an illustration of two or more triangles. They identify the postulate that would be used to prove...

In this geometry worksheet, 10th graders order the sides and angles of a triangle and determine the range of the third side of a triangle given the lengths of two sides.  The one page worksheet contains sixteen questions. ...

The fifth installment in a writing unit that culminates with a Hyperstudio illustrated group story project, this plan is ripe with ideas for ways to design group writing projects for elementary writers. Use the whole unit as a base from...