Math Learning Center
Grade 5 Supplement Set A2 – Number and Operations: Primes, Composites and Common Factors
Incorporate riddles into your math lesson by having students make tree factors and determine if the number is a prime or composite. They will also use other clues to find the answer to the riddle while sharpening their...
Illustrative Mathematics
Sort and Count
Young mathematicians are on their feet and moving around in this primary grade sorting activity. After giving each child an object or picture card, they then sort themselves into groups, counting to see which has the most or least...
Oswego City School District
Regents Exam Prep Center: Working With Sets and Venn Diagrams
This Oswego City School District site gives an explanation of Venn diagrams, then uses a word problem to show how Venn diagrams can be applied to solve algebraic equations.
Oswego City School District
Regents Exam Prep Center: Practice With Venn Diagrams
Four examples (with increasing difficulty) of Venn diagrams are given. Solutions are provided along with explanations and diagrams showing how the answers were derived.