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# Place Value: Lesson 2: bears

## Agree or disagree?

Ravi said, “The bear with the third longest length is the giant panda.”

The period of time that a baby bear grows inside its mother is called the gestation period. In grizzly bears, this period can be between 180 and 266 days. When a grizzly cub is finally born, it has no fur and cannot see until it is a few days old. It will feed on its mother’s milk for five months and will stay by her side for up to three years.

## Whiteboard Challenges

In Yellowstone National Park, a female grizzly bear had given birth to four cubs in her lifetime. Their names, and the amount of time each cub spent growing inside its mother, are represented below.

1) Which cub spent the longest time growing inside its mother?

2) How many more days did Sylvia spend inside its mother than Albert?

3) Can you order the numbers, starting from the least amount of time a cub spent growing inside its mother?