Students will learn how to solve GCD and LCM word problems.
GCF & LCM word problems by Khan Academy
GCF & LCM word problems by Khan Academy
Next, give your students these challenges:
- 2017 Math Kangaroo Levels 5-6 Problem #23 by STEM4all
- 2019 Math Kangaroo Levels 3-4 Problem #20 by STEM4all
- Paper Partners by NRICH
Conclude by leading this investigation:
Toothpick, Vampire and Domino Sequences
by MathPickle
6.NS.B.4: Find the greatest common factor of two whole numbers less than or equal to 100 and the least common multiple of two whole numbers less than or equal to 12. Use the distributive property to express a sum of two whole numbers 1-100 with a common factor as a multiple of a sum of two whole numbers with no common factor. For example, express 36 + 8 as 4 (9 + 2).