Wallace Sabine showed that the decay is approximately exponential and calculed the RT60 using what we know as the Sabine equation: You'll even notice the difference between an empty house and a furnished one:
Suggested Vinculum A challenge to find fractions which are larger than the previous fraction but less than one. The short web address is: Year 5 Pupils should be taught to compare and order fractions whose denominators are all multiples of the same number more Pupils should be taught to identify, name and write equivalent fractions of a given fraction, represented visually, including tenths and hundredths more Pupils should be taught to add and subtract fractions with the same denominator and denominators that are multiples of the same number more Pupils should be taught to multiply proper fractions and mixed numbers by whole numbers, supported by materials and diagrams more Pupils should be taught to solve problems involving multiplication and division, including scaling by simple fractions and problems involving simple rates more Year 6 Pupils should be taught to use common factors to simplify fractions; use common multiples to express fractions in the same denomination more Pupils should be taught to add and subtract fractions with different denominators and mixed numbers, using the concept of equivalent fractions more Pupils should be taught to multiply simple pairs of proper fractions, writing the answer in its simplest form more Pupils should be taught to solve problems involving unequal sharing and grouping using knowledge of fractions and multiples.
Pupils should be taught to divide proper fractions by whole numbers more Pupils should be taught to associate a fraction with division and calculate decimal fraction equivalents [for example, 0.
Pupils should be taught to recall and use equivalences between simple fractions, decimals and percentages, including in different contexts. Years 7 to 9 more Pupils should be taught to express one quantity as a fraction of another, where the fraction is less than 1 and greater than 1 more Pupils should be taught to use the four operations, including formal written methods, applied to integers, decimals, proper and improper fractions, and mixed numbers, all both positive and negative more Pupils should be taught to understand that a multiplicative relationship between two quantities can be expressed as a ratio or a fraction more Pupils should be taught to work interchangeably with terminating decimals and their corresponding fractions such as 3.
Pupils should be taught to interpret fractions and percentages as operators more The range of questioning provided is excellent as are some of the images. I rate this site as a 5! My pupils say they love them!!! Is the collection available on CD? I don't know were I would turn to with out you!
I have so much material to use in class and inspire me to try something a little different more often. I am going to show my maths department your website and encourage them to use it too. How lovely that you have compiled such a great resource to help teachers and pupils.
Lots of interesting discussions and questions have arisen out of the activities.
Thanks for such a great resource! A great resource - thanks a million. Thank you for being so creative and imaginative. We all often use the starters as the pupils come in the door and get settled as we take the register. I set it as an optional piece of work for my year 11's over a weekend and one girl came up with 3 independant solutions.
My students would often turn up early to tackle the starter of the day as there were stamps for the first 5 finishers.
We also had a lot of fun with the fun maths.The table below describes the attributes used by various Graphviz tools. The table gives the name of the attribute, the graph components (node, edge, etc.) which use the attribute and the type of the attribute (strings representing legal values of that type).
Write 84 as a ratio in simplest form. Rick is a salesman whose base monthly salary is $2, He earns 5% commission on total sales. Percent to fraction (P > F) Since percent is always a ratio comparing a number to , every percent can be written as a fraction over Once written as a fraction over , it .
Write the fraction ratio in simplest form Write the fraction ratio in simplest form – word problems Writing Ratios of Two Quantities in Simplest Form — Write a ratio with two terms in simplest form.
Example 1: A backyard pond has 12 sunfish and 30 rainbow shiners.
Write the ratio of sunfish to rainbow shiners in simplest form. Write the ratio as a fraction.
12 30 Now reduce the fraction. 2 5 So the ratio of sunfish to rainbow shiners is 2: 5. (Note that the ratio of rainbow shiners to sunfish is the reciprocal: 5 2 or 5: 2.).
Reduce a Fraction to Lowest Terms This page will show you how to reduce a fraction to lowest terms.
Type your numerator and denominator (numbers .