Catchphrase quizzing activity on writing error intervals. Answers and catchphrase are provided. Students need to write the error intervals for the rounded numbers. I sometimes change the image below to a picture of famous person to add more variation to the game. Students either as individuals or small groups answers questions to reveal part of an image. The more questions the students answer the more of the image is revealed. The winner is the person who manages to say what they see and guess the catch phrase. I’ve included the answer to each catchphrase in the notes box, as well as answers on the second page.

All answers are provided I've designed this lesson to build up students knowledge of how to estimate. BONUS Activity - Wheel of fortune estimation quiz activity. Spin the wheel, click the section the arrow lands on, get the team to answer the question, check the answer, click the home button to go back to the wheel. (When on presentation mode you can type in the teams current score on the main slide). It begins with 10 quick questions. These focus on a students knowledge of rounding, the last 5 questions focus on rounding to 1 significant figure. The slides automatically progress to the next when when you press the start button. (The next question appears every 8 seconds) Estimation including single steps - 2 examples - 3 Mini Whiteboard Questions - Bronze, Silver & Gold Your Turn Section. Estimation multiple steps - 2 examples - 2 Mini Whiteboard Questions - Bronze, Silver & Gold Your Turn Section. The resource then in includes a differentiated focused activity which progressively gets harder. This gives students a chance to master and enhance their skills. It includes 4 separate sections: skills 1, 2 & 3 and a stretch 1. These are all displayed on the same slide for ease of use, however could be printed as a worksheet. The PDF's of these slides have been attached to make printing easier and cheaper. Then to finish there is an application on how this could be seen in an exam situation with several exam style questions including answers. I hope you find this resource as useful as my students have. Any of the the slides could be printed as worksheets if you feel that would be easier for your class. Miss B Any problems with any resource please email me at missbsresources@gmail.com I will try resolve any issues you have as quickly as possible for you.