Google Slides for helping students estimate prices

The Google Slides (link at bottom of page) has an editable text box to allow educators and parents to enter items for estimation (below, top). Several items can be included in a single Google Slides (below, bottom).

If a student has an unreasonable response, a follow up activity can be provided. In the follow up, the student shops online for 3 different examples of the item (below, top). In the example at the bottom, the student had reasonable estimates for shoes and a laptop, and was tasked with shopping for candy bars and a bag of chips. After multiple sessions, the student began to estimate candy bar prices in the low single digits.

The game is played on a Jamboard. There are moveable game pieces on the left (Lego figures chosen to mirror the players – no hair is me), along with movable bills. There is a white rectangle partially covering the cashier’s money. It is a moveable rectangle I use to reveal the money when the cashier pays out money to a player. The money is subsequently covered again. When money is paid, the appropriate number of bills are moved to the cashier’s counter. Change can be computed and given. (technical note: you can click on an object on Jamboard to change its order, e.g., click on the bills to move them back, behind the rectangle.)

The game is a version of the Allowance Game, which is appears to be a version of Monopoly. The goal is to simulate budgeting and real life spending situations in an interactive and gamified way. The spaces can be revised to cater to the interests and reality of the players. The activities are all ones that I have used in isolation with students I help. The game can be played online and with multiple players who need to learn consumer math topics. (When you share the Jamboard with others, you can make them editors which allows them to move pieces.)

Players start with money in a bank account (center of the board) and then roll a virtual die and move accordingly. If a player does not have enough money for a spending activity, the activity cannot be completed. For some experiences, they are limited in what they can spend, e.g., buying a birthday present. (For rent, I will use an IOU until the player makes enough money – obviously a lot to possibly unpack in this scenario.) Spaces have an activity that falls into one of three categories:

earn money at a job by rolling dice for the number of hours worked

have a static money experience, e.g., get $20 from birthday or spend $12 on tooth brush

have a dynamic money experience, e.g., spend money on Amazon or attend a baseball game and the player goes to a related website (for example, a player buys a Red Sox ticket and a YouTube video of highlights of a game is shown – maybe 2 minutes)

A couple notes: I left the START space empty and am thinking I will move the find a job activity to that space. As of this posting I did not have students find a job yet and simply opened a link to a Target store site for employment and showed them a job ad. I think I will start the game with each player finding a job and rolling the die to earn money at the start.

Below are the steps I use to create and revise the game. If you have any suggestions, please post in the comment section.

Here is a link to a master copy of the game on a Google Doc. It can be copied and then revised. I store my game pieces on here as well.

Here is a link to a master copy of a WORD document I use to position the board with a cashier to create the image shown on the Jamboard.

I previously shared that grocery shopping has a lot of tasks that are overlooked. One is working with unit costs. There are two math tasks related to unit cost, interpreting what a unit cost is and computing the total cost for buying multiple items.

When I take a student into a grocery store to work on unit costs, where is what I do. I start with a pack of items (photo below) and ask the student to compute the cost for 1 item, in this case, “what is the price for the pack of chew sticks, how many in a pack, how much for 1 chewstick?” Then I prompt the student to compute the total if he buys 3 packs. This allows the student to differentiate between the two tasks.

The cost per items is easier to grasp and then is followed with the same prompts for a jar of sauce (below). I have the student compare unit costs for the large vs the small jars and ask, “do you want to pay $4.99 per ounce or $5.99 per ounce.” This language is more accessible than “which is a better deal?” You can work towards that language eventually.

These tasks can be previewed at school with a mock grocery store. The price labels can be created on the computer.

The students loved playing the game, it was engaging so they practiced the counting out money, I was able to collect data, and I was able to differentiate. When I co-taught a Consumer Math course, I would assign a para (instructional assistant) to facilitate the game with a couple students and to collect data.