Use LCM in cycle stories

5th Grade Math practice: One bell rings every 4 minutes and another rings every 6 minutes. After starting together, when will they ring together again. Part of factors and multiples (Factors and multiples).

~7 min

Use LCM when repeating events need to line up again.

Identifying Repeating Cycles

Blinking Lights

013453Blue Li…4Red Lig…

A cycle is an event that repeats at a set interval. When two different events have their own cycles, they will eventually happen at the same time again.

💡 Think about blinking lights or meeting friends on a schedule.