NZL One - Two - Three

For those of you that are not on Facebook here is a brief round up of what members shared over term 1 What is 1/2 a coconut an apple and 3 bananas worth? The year began with a lot of activity around this puzzle that also featured in the NZ Herald  http://m.nzherald.co.nz/lifestyle/news/article.cfm?c_id=6&objectid=1159137 0 These are great conversation starters for classrooms and encourage mathematical discussions between students. Maths in the News ‘Not a Math Person’: How to Remove Obstacles to Learning Math .  Jo Boaler from Stanford University   http://ww2.kqed.org/mindshift/2015/11/30/not-a-math-person-how-to-remove-obstacles-to-learning-math/ How often do you hear people telling you they can't do maths? This article from Washington post is for them  " Stop telling kids you’re bad at math. You are spreading math anxiety ‘like a virus.’" https://www.washingtonpost.com/news/answer-sheet/wp/2016/04/25/stop-telling-kids-youre-bad-at-math-you-are-spreadi

Statistical Inference is the practice of forming judgments about the parameters of a population on the basis of random sampling. When it comes to the inference standards I see 3 main pain points.  1. The question 2. Sampling variability 3. Answering the question. In this post I will address pain point 1. The question The question being asked is about groups within a population. The population being investigated should be identified within the question. Contextual knowledge drives the investigative process. Spending time developing students contextual knowledge helps students develop their question.  The senior secondary guides state at  NCEA Level 1:  students should be  working with contexts that are  familiar to them . NCEA Level 2:   students should be  provided with relevant contextual knowledge about the situation under investigation. NCEA Level 3:  students should be  sourcing relevant contextual knowledge about the situation under investigation from