Lower Elementary:
Question: Grace plants a pea for her science fair project and measures how much it grows each week. The first week, it grows 2 inches. After 2 weeks, it is 5 inches tall. After 3 weeks, it is 9 inches tall. After 4 weeks, it is 14 inches tall. After 5 weeks, it is 20 inches tall. If the pattern continues, how tall will the pea plant be after 6 weeks?
Answer: 27 inches
Solution: The plant grew two inches the first week, 5 – 2 = 3 inches the second week, 9 – 5 = 4 inches the third week, 14 – 9 = 5 inches the fourth week, and 20 – 14 = 6 inches the fifth week. The pattern is that it grows 1 more inch each week than it did the last. So, it will grow 7 inches the sixth week, making it 20 + 7 = 27 inches tall.
(626)387-3639
(626) 387-3639
