Sixteen kids jumped rope for one minute, and the scores are all over the place. A stem-and-leaf plot sorts them and draws them at the same time.
Not started yet.
By the end of this lesson your student should be able to build a stem-and-leaf plot from a list of numbers, keep empty stems, write the key, and read the mode, the median and the spread off the finished plot.
🚨 Skipping a stem because it has no leaves. A gap in the stems is part of the picture, and leaving it out squeezes the plot.
Dropping a leaf when a number repeats. Every value gets its own leaf, so 38 showing up three times makes three 8s.
Forgetting the key, or leaving the leaves in the order they came from the list instead of putting them in order.
Have the student count the leaves on the finished plot and compare that with the count of the original list. If the two numbers differ, a leaf went missing.
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Before You Start
The words this lesson uses. Tap a card to see what it means, then come back to them whenever a question uses one.
Part One
Questions about the story you just read. Pick your answer straight off, or press Find it in the story if you would rather hunt for the sentence first.
Part Two
The word cards are at the top of this page. Look back at them as often as you need, then answer.