"November 2016", by Randall Munroe, licensed under Creative Commons Attribution-NonCommercial 2.5 License
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Once you've done this, make a note of how old they were. Then, when their age reaches double that, show them this chart again.
"November 2016", by Randall Munroe, licensed under Creative Commons Attribution-NonCommercial 2.5 License
Once you've done this, make a note of how old they were. Then, when their age reaches double that, show them this chart again.