Improve hints in Place Values "Rounding Numbers"

[seanlip]

From a pilot report (early 2024), there are some issues with the Place Values lesson on rounding numbers:

• Student had difficulty in rounding values as she complained about the word “Rounded”. She preferred the word “Rounded Up” to the nearest values.
• With values such as 54 been rounded to the nearest hundred: after several attempts, he was a little frustrated and almost lost interest. He suggested the hints should be more explanatory on the task at hand rather than taking them to the previous lessons alone.

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Based on the above, we should do the following:

• Ensure it's clear to students that they need to figure out whether to round up or round down (i.e. the direction of rounding won't always be given to them).
• Make the in-question hints for "round 54 to the nearest hundred" clearer. Try to avoid only taking the learner to a previous card.