# Internet Resources

We have compiled a collection of internet resources that can be useful in teaching particular aspects of numeracy. If you know of resources you would like us to add to the collection, just use the simple submission form to tell us about them.

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Results 1 - 10 of **146 matches**

Human Population through History: 1 A.D. to 2020

This website contains eight maps showing human population density starting in 1 AD. Maps can be viewed as large single maps or as an animation of population change through time. The maps are from a ...

Calculating Weighted Averaged in Spreadsheets: SUMPRODUCT Command

This site shows students how the average command fails in excel when calculating the weighted mean. It tells students, instead, to use sumproduct.

Wolfram Math World: Weighted Mean

This site explains how to calculate weighted means in a more sophisticated manner, e.g., summations.

Overview of Chart Types and Their Uses

This site explains what each type of chart does and when it should be used. Examples are given.