EngageNY
True and False Number Sentences II
Substitution is still the method of choice to verify number sentences. The detailed lesson has young mathematicians determining conditions for when number sentences are true or false through substitution. They learn to express these...
West Contra Costa Unified School District
Investigating the Discriminant
When is finding the discriminant enough? Using the quadratic formula helps find solutions to quadratic equations, but there are times when just using the discriminant is appropriate. Use this algebra II lesson to help classes see...
EngageNY
Cones and Spheres
Explore methods for finding the volume of different three-dimensional figures. The 20th lesson in the 25-part series asks learners to interpret diagrams of 3-D figures and use formulas to determine volume. Scholars must use the...
Virginia Department of Education
Surface Area of a Rectangular Prism
Wrap up a activity on surface area with a resource that asks scholars to use the idea of wrapping paper to investigate surface area. They draw representations of rectangular prisms on graph paper to find the areas of the respective...
Perkins School for the Blind
Bagging Groceries
Bagging groceries is a skill that can help learners with visual impairments understand organizing, problem solving, and weight discrimination. In addition, it is also a wonderful job skill. Help learners as they determine how to bag...
West Contra Costa Unified School District
Simplifying Fractions Activity
Warm-up pupils' fraction muscles with a four-question quiz, then delve into a learning game designed to reinforce the concept of simplifying fractions. Based on the "I do, We do, You do" method of teaching, the lesson directly...
EngageNY
Wishful Thinking—Does Linearity Hold? (Part 1)
Not all linear functions are linear transformations — show your class the difference. The first lesson in a unit on linear transformations and complex numbers that spans 32 segments introduces the concept of linear transformations and...
West Contra Costa Unified School District
Investigating Special Right Triangles
Scholars first investigate relationships in the side lengths of 30°-60°-90° triangles and 45°-45°-90° triangles. This knowledge then helps them solve problems later in the lesson about special right triangles.
Curated OER
Cuisenaire Chefs
Favorite family recipes and cuisenaire rods are used to help learners understand fractions. They bring in recipes from home and then use their cuisenaire rods to model the fractional values needed to prepare various dishes. A great way...
Virginia Department of Education
Going the Distance
Estimate the value of one of the most famous irrational numbers. The hands-on lesson instructs classmates to measure the circumference and diameters of circles using yarn. The ratio of these quantities defines pi.
West Contra Costa Unified School District
Multiplying Binomials and Factoring Trinomials
Two lessons for the price of one! Learners use algebra tiles to multiply binomials in the first lesson, Next, they use their knowledge from the first lesson to factor trinomials into two binomials.
West Contra Costa Unified School District
Introduction to Trigonometric Functions
Scholars first learn the definitions of the sine ratio, the cosine ratio, and the tangent ratio. After mastering these definitions, they use the new information to solve triangles.
Curated OER
M&M's and the Scientific Method
Sixth graders explore the scientific method by conducting an in class experiment. In this scientific averages lesson, 6th graders discuss the concept of the scientific method, and define the different mathematical averages, mean, median...
West Contra Costa Unified School District
Polynomial Division
How do you apply the traditional division algorithm to polynomials? Here is an Algebra II activity that extends the use of the division algorithm to polynomials. After establishing the concept of long division, synthetic division and the...
Kenan Fellows
How Does an Unhealthy Diet Influence our Health and Well-Being?
You are what you eat, or so they say! After surveying family and friends on a week of eating habits, learners analyze the data for patterns. They compare different variables such as fats and cost, fats and calories, or fats and LDLs.
Curated OER
Operations for Problem-Solving
Students examine a problem and develop the best method to arrive at the solution. In this math lesson, students apply basic math skills by coming up with the correct steps to solve a word problem. ...
Curated OER
Problem Solving Through Communication
Students discuss effective ways to solve and communicate problems. For this word problem lesson, students solve a variety of word problems written by varying authors. They rewrite words using algebraic terminology.
Curated OER
Problem Solving With Fractions
Sixth graders solve and analyze fractions. In this algebra lesson, 6th graders solve fractions using addition, subtraction, multiplication and division. They work in groups and do peer-review.
Curated OER
Calendar Computation
Learners solve math problems by using a calendar. In this problem solving activity, students review the days of the week and months in a year. Learners complete a problem solving worksheet about the calendar.
Curated OER
Substitution Process in Problem Solving
Students apply the substitution process to solve equations with more than one variable. They explore how to use the process and when it should be used.
Curated OER
Using Inequalities to Problem Solve
Young scholars explore inequalities. In this Algebra I lesson plan, students solve and graph linear inequalities involving addition, subtraction, multiplication, or division. Young scholars use inequalities to solve and graph...
Curated OER
Problem Solving Using Percentages
Students explore the concept of percentages. In this percentages lesson, students find the percentages of various colored m&m's in their bags. Students find the cost of items before and after a discount. Students use proportions to...
Curated OER
Problem Solving Using Pattern Blocks
Students use pattern blocks to create a figure that is described to them and establish a pattern based on the description of the geometric figure. In this pattern blocks lesson plan, students fill out shape and fraction worksheets.
Curated OER
Book Title: Ten Flashing Fireflies
This instructional activity engages learners in a variety of activities to build 1 to 1 correspondence, estimation, and problem solving skills. They discuss problem solving strategies, hear the story Ten Flashing Fireflies, compose...