Investigate the Problem Types

What kind of math problems does Riddle Books have?

There are seven problem types that your students may encounter in Riddle Books. Within each type there are several sub-types depending on what value(s) is missing and what value(s) is known. Watch our YouTube playlist featuring all seven! Riddle Books is in constant development, so while some of these featured videos are from January 2016, keep in mind things may change slightly based on tester feedback!

All of these build towards support and modeling described in:
6.RP.3.b, 6.RP.3.c, 6.NS.1, 6.EE.6, 6.EE.7, 6.EE.8, 7.RP.3, 7.NS.3, 7.EE.3, 7.EE.4.a, 7.EE.4.b, 8.EE.8.c!

Fundamental

Common Core: K.OA.2, 1.OA.1, 1.OA.2, 2.OA.2, 3.OA.3, 3.OA.8

Intermediate

Common Core: 3.OA.3, 3.OA.8, 4.OA.2, 4.OA.3,
3 – Part-Whole Multiplication/Division
4 – Comparison Multiplication/Division

Common Core: 4.NF.3.d, 4.NF.4.c, 5.NF.2, 5.NF.3, 5.NF.6, 5.NF.7.c
6 – Part-Whole Fractions
7 – Comparison Fractions

Challenge

Common Core: 2.OA.1, 3.OA.8, 4.OA.3
5 – Two Step (mixed operations)

Fundamental Mastery

Compatible with Common Core: K.OA.2, 1.OA.1, 1.OA.2, 2.OA.2, 3.OA.3, 3.OA.8

These problems will give or ask for the values of two or more different items and the total of all of those items added together. Boxes are made for each of the items that are supposed to be part of the sum. The bracket, either to the bottom or to the side, is used to show that the value of all the boxes inside the bracket combine to equal the value of the bracket.

Basic Subtraction

These problems will give or ask for the values of items that make up a smaller part and a larger part. It will also have somewhere in the text the difference between the larger and smaller part. The keywords greater/fewer or more/less will give you a clue that subtraction is needed. Boxes are placed on different rows to represent the item with larger value and the item with the smaller value. The space between the larger and smaller row is where the difference needs to be shown.

Intermediate Mastery

Basic Multiplication/Division

In these problems you will have either groups of an item or one item being a some multiple of times larger than another item. The problem will give you the number of groups or the number of multiples. Also carefully look for where the problem talks about the size of one group or multiple and the total value of all groups or multiples combined as both those part are needed in your answer. Several equal sized boxes are used to represent the groups or multiples referenced in the problem. The name on top of one of the boxes indicates the value of a single group or multiple. The bracket value shows the total, which is equal to the value of a single box multiplied by the number of boxes.

Multiplication/Division with Multiple Operators

These problems are mostly similar to the Basic Multiplication/Division except for a few additional parts to look for. There will usually be one type of item that is a multiple of another type. In addition, the problem will either ask for or give the total value of both types added together or the difference between both of those types. The equal sized boxes represent the number of groups or multiples referenced in the problem. The two rows are used to represent the two types of items in the problem, with the larger one being some multiple larger than the other. Depending on the wording of the problem you will need to show the total of the two item types added together or show the difference between them.

Fractions

These problems will have one item type to represent a total or whole and then indicate a fraction to be taken from the whole. The fraction the problem talks about represents a subgroup of the whole, the value of which is either given or requested. Remember that the fraction you need to show may not be the one explicitly referenced in the problem. The row of equal size boxes represents the 'whole' of a total set of items. The number of boxes to use should be chosen such that any fraction referenced in the problem can be indicated by just by counting some number of the boxes. Each bracket should show the value of each of those fractions.

Fractions of a Whole

These problems will have two different item types, where a smaller item type is a fraction of the amount of another item type. This is similar to the other fraction category, except the item type that is the fraction is NOT a subgroup of the larger item type. Depending on the problem, it will also give or ask for the total value of both item types combined, the difference between the two item types, the value of the smaller item type, or the value of the larger item type. Each row of equal sized boxes represents one type of item. The first row is treated as the 'whole' and the second as the 'fraction of the whole'. The numerator and denominator of the fraction will tell you how many boxes you need to make. If the problem has a difference, there will need to be two rows. Multiple rows also make it clearer what the total of the larger item or smaller item is.

Challenge Mastery

5 – Two Step (mixed operations)  