Pictograms: fossils

3 - Whiteboard Challenges

Spot the Mistake!

Meriem created a tally chart from the trilobite pictogram shown opposite.

Her tally chart looked like this:

Can you explain the mistake that Meriem made to your talk partner?

For more than 250 million years, our ancient seas were full of trilobites. Some were monster-sized while others were no larger than a flea. Most crawled along the sea floor in search of food.

Whiteboard Challenges

This pictogram shows the number of trilobite fossils discovered in a quarry on the edge of the Brecon Beacons in Wales over a four-year period.

1) How many trilobite fossils were discovered in 2019?

2) How many more trilobite fossils were discovered in 2018 than were discovered in 2021? 

3) Ben said, “In this four-year period, more than 50 trilobites were discovered in the quarry.”  Do you agree with Ben?