Every once in a while, all the oaks or spruces or other plants in a region suddenly produce a tremendous bounty of seeds – up to 100 times more than usual. But why do they do it, and how do they all manage to...

Paul Andersen shows you how we can use a spreadsheet to model population changes. He begins with a brief discussion of populations and life cycles. He then shows you how you can model a single generation using a spreadsheet.

Pupil outcome: I can describe how animals and plants in temperate deciduous forests adapt to the climate. Key learning points: - Animals such as squirrels, hedgehogs, and birds, such as nightingales, can be found in temperate deciduous...

Pupil outcome: I can construct pie charts using angles, fractions and percentages. Key learning points: - A pie chart is another way of presenting data representing parts of a whole. - Pie charts can be constructed using knowledge of...

Viking Tattoos, Viking Rune symbols, Meaning of Viking Runes, Viking cultural symbols, Meaning of Viking Tattoos, Viking Culture, Norse symbols, Valknut symbol, Mjolnir, Viking myths, Helm of Awe tattoo, Viking Runes, representing viking...

In this interview with Dan Barber, we talk about his latest book, The Third Plate, his passion as a chef for outstanding food, and the eventual realization that his search for the finest food ingredients requires a paradigm shift in...

This video is a lecture on different types of sampling techniques. The speaker explains the purpose of taking samples and the importance of having a representative sample in order to infer information about the overall population. They...

This video explains the concepts of populations and samples in statistical analysis. It defines population as the overall group of interest, and sample as a subset of the population used to infer information about it. The video...