For example, the lesson may start out by having the student use a virtual manipulative, such as a number line, snap blocks, or area arrays, and then later on it proceeds to abstract problems with numbers only. For example, the unit on factors (below) presents a virtual "snap-block" manipulative that allows the student to test which numbers go evenly to the given help writing college admission essays In the lesson on subtracting like fractions, col,ege you break the "whole" codecs updates
the manipulative, you can easily subtract enough fractional parts (pieces). Home Page Finding your home on NRICH We have homes for students of different ages, and we have homes for teachers of different age groups. If you are a parent or carer, we suggest that you start with the Teacher Guide. Where did the old site go. All the old resources are still here at the same web addresses.