Starter quiz
- Starting with the smallest, put these numbers in ascending order.
- 1⇔-3.4
- 2⇔-3.04
- 3⇔-2.16
- 4⇔-2
- 5⇔3.1
- 6⇔3.15
- 7⇔3.403
- Which of these numbers is not equivalent to the others?
- 12.5
- 12.05 ✓
- 12.500
- 12.50
-
- The last digit in 13.8 represents __________.
- 8 ones
- 8 tens
- 8 tenths ✓
- 8 hundredths
- 80 hundredths ✓
-
- Simplifying a number by 'cutting off' one or more of the digits and replacing them with zeros if necessary to preserve place value is known as __________.
- cutting
- rounding
- simplifying
- truncating ✓
-
- 23.6473 truncated to 2 decimal places is ______.
- '23.64' ✓
- Here is a list of numbers: 56, 624, 40.6, 62, 668, 256, 60.06, 36, 0.66, 68, 62, 62.9. How many of the numbers have 6 tens?
- '6' ✓
Exit quiz
What part of the stem and leaf diagram is highlighted?- the key
- a leaf ✓
- the stem
-
The value of the highlighted data point is ______ cm.- '3.9' ✓
The value of the highlighted data point is ______ kg.- '0.045' ✓
Sam draws this stem and leaf diagram. Is Sam's diagram complete?- Yes, as it has a key.
- No, the leaves are not ordered. ✓
- Yes, as the leaves are evenly spaced.
-
The highlighted leaf represents ______ seconds.- '42' ✓
Sam and Andeep draw a back-to-back stem and leaf diagram to compare their classes' scores in a quiz. The lowest score in Andeep's class is ______ more than the lowest score in Sam's class.- '2' ✓
Worksheet
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Presentation
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Video
Lesson Details
Key learning points
- The stem is made of all but the last digit of each value.
- The leaves are made from the last digit of each value.
- It is important that place value is preserved in the diagram through use of a key.
- A stem and leaf diagram can display data in strata.
Common misconception
That the stem always has to have the same number of digits.
Data with a range between 93 cm and 147 cm, draw the stem-and-leaf diagram but how do they write a key for it? Stress the leaf is the final single digit (all truncated so final digits have same place value), and all other digits form the stem.
Keywords
Stem and leaf diagram - A stem and leaf diagram is a systematic way to visually organise and represent numerical data.
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