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.
Illustrative Mathematics
Use Cavalieri’s Principle to Compare Aquarium Volumes
Learners are designing a stunning new water feature for an aquarium, but they soon discover that more than just a pretty home for their fishy friends is required. From calculating the volume of a composite shape through the abstract...
Curated OER
Teaching Students Mathematical Reasoning Skills
Students can build upon their basic math skills and become higher order thinkers when we encourage the following principles.
Curated OER
10 Logic
In this algebra worksheet, students define and use not, and, or. They also discuss how biased or valid a test is. They apply logic to solving real life scenarios and word problems.
Curated OER
Sum Machine!
In this addition learning exercise, 2nd graders find the sum of 14 addition math problems involving three-digit whole numbers. Students write 1 original addition problem that can be solved.
Curated OER
Find the Fake
In this division problems worksheet, 3rd graders look at 7 rows of division problems and determine which one of the four on each row does not belong with the other three. Students circle their answers.
Curated OER
Problem Solving: Use Logical Reasoning challenge
In this sorting activity, students use logical reasoning to identify a sorting rule for each set of two pictures and draw a third item that belongs in each group. Students draw four pictures.
Curated OER
Rooster's Off To See the World Number-Sense
Students recognize how numbers are used in number stories. For this Rooster's Off To See the World lesson, students participate in the story. Students complete a number activity and work on the computer to illustrate a number story. ...
Curated OER
Problem Solving: Reasonable Answers
In this reasonable answers worksheet, students use their logical thinking skills to answer 3 math questions that involve problem solving.
Curated OER
Problem-Solving Strategy: Use Logical Reasoning
In this logical reasoning worksheet, students utilize the problem-solving strategy of logical reasoning to answer 2 short answer mathematical questions.
Curated OER
Problem Solving: Strategy: Use Logical Reasoning
In this problem solving strategy activity, 6th graders solve a story problem using the strategies of understand, plan, solve, and look back.
Curated OER
Challenge: Logical Reasoning-Working With Tables
In this logical reasoning worksheet, students write yes or no about the number of teeth various animals have, completing a table to solve 5 questions, then read a set of clues and draw a table to solve 6 questions.
Curated OER
Problem-Solving Strategy: Use Logical Reasoning, Practice
In this logical reasoning worksheet, 2nd graders solve 3 word problems, showing their work. Reference to a Houghton Mifflin text is given.
Curated OER
Problem-Solving Strategy: Use Logical Reasoning
In this problem solving strategies learning exercise, students use logical reasoning to understand, plan, solve, and look back at a word problem.
Curated OER
Logic
In this time logic worksheet, students solve time word problems about time on the clock and the date on a calendar. Students complete 5 problems total.
Curated OER
Number Sense and Numeration: Multiples, Factors and Square Roots
A great resource for any math teacher covering multiples, factors or square roots; this learning exercise walks young mathematicians through the logic behind factoring and square roots with a systematic set of problems which gradually...
Curated OER
Logic
In this logic learning exercise, learners read logic puzzles. They use tables and Venn diagrams to organize data and determine the answer to the question. This ten-page learning exercise contains 16 problems. Answers are provided on the...
Curated OER
Problem Solving: Story Problems
In this problem solving worksheet, 3rd graders will read and solve 6 story problems about time, money, and numbers of objects. Students must use logic, addition and subtraction skills.
Curated OER
Math Club Worksheet #30 - Visual Stretches
In this visual math puzzle worksheet, students work in groups to find the answer to 6 math puzzles. They work with geometric shapes and symbols.
Curated OER
Video Viewers
In this video viewers worksheet, 3rd graders solve 2 word problems dealing with watching videos, read and analyze 4 clues in order to fill in a chart correctly involving 5 people and the types of videos they watch.
Curated OER
Logical Relationship of Postulates & Theorems
In this postulates and theorems instructional activity, students explore a concept map containing information about angles and sides, alternate interior angles, and diagonals of a parallelogram. They use the concept map to prove...
Curated OER
Binary Math Circuits
In this Algebra II/Pre-calculus worksheet, students analyze and build digital circuits. The six page worksheet contains eleven problems. Answers not included.
Curated OER
George Island: Logical Thinking
In this logical thinking learning exercise, learners read a story about George Island. From the clues that are given, and the diagram, they determine who lives in what house on George Island. Students use their logical thinking skills...
Curated OER
The Grandchildren Problem
For this grandchildren problem, students read facts about grandchildren. They use logical reasoning to determine the birthday of four grandchildren. Students predict the date of the fifth grandchild's birth. This one-page worksheet...