Joustra Software Products

We have developed th...

Linear Equations

We have developed the educational program "Linear Equations", not to replace the math teacher at high schools, but to be a help for the algebra students. Surely they will like to play with the software, and in the meantime they will learn in a unique way to resolve linear equations, which is an important part of mathematics. Linear equations are equations involving only one variable, like x or y, and nothing complicated like powers or square roots. In the four exercises of the program the following rules are used: To solve an equation you may 1) divide both parts of the equation by the same number; 2) multiply both parts by the same number; 3) add the same number to both parts; 4) subtract the same number from both parts; 5) you may not divide by zero or multiply; 6) move terms from one part to the other part, but only if you change the sign of those terms. In the program you hardly have to use pen and paper, and the exercises are not simply "questions with an answer", but a special kind of "dynamic-game-like-mathematics". To challenge your knowledge, you can play the falling blocks style math game "Valgebra": By manoeuvring the falling x-terms and numbers, you resolve an equation. But take care.., if you make a mistake, you are penalised by a reduction in the size of the container, which immediately makes it harder to control successive terms precisely! The high scores will surely motivate your motivation to study and practise the theory and exercises to resolve linear equations! Linear Equations license is demo and it is listed in mathematics software.

Keywords: linear equation algebra educational high school learn resolve mathematics math maths action script

This math game chall...

Valgetal Tables

This math game challenges you to practise the multiplication tables by controlling the placement of falling numbers. If you create a vertical column of two blocks, the number on top must be the multiplication of the number below it and the number you have chosen in the main menu; if it isn't, you are penalised by a reduction in the size of the container, which immediately makes it harder to control successive blocks precisely. If you have chosen, for example, to practise with "8", and you place a 5 on the bottom, then you must put a 40 above it to complete the equation: 5 x 8 = 40. There are 20 progressively difficult levels to begin with. A high-score board lets you post your name and results. The game's name means 'falling numbers' in Dutch: English, Friesian, Dutch, German and Spanish interfaces are included. This education software is listed under games.

Keywords: mathematics math multiplication tables calculate learn fun kids school tetris blocks valgetal falling style practise tables links list

Like in chess or che...

Matego

Like in chess or checkers, in Matego you also fight against an hostile army. But this time your soldiers are numbers and your weapons all four basic math operations. The goal of Matego is to destroy as fast as possible the numbers of your opponent. If you play against the computer, the higher the level and the more numbers you eliminate, the more points you will receive. If you play with an other player, you win if your opponent has no more numbers left. You play Matego by moving the cursor in your army to the line where you want to attack. After that you make the number in the cursor equal to the sum of the two numbers "at the other side" and you fire. The pressure is on, because in the meantime your opponent is attacking you, and if you make a mistake two of your own numbers will disappear. Besides adding, experienced players can also subtract, multiply or divide the numbers of their opponent. The High Scores list will stimulate your motivation! games, mathematics shareware listed in games, mathematics section.

Keywords: matego mathematics play learn numbers battle strategy kids add subract multiply divide math fun educational children arithmetic maths transfer sets

In Eurobloks you can...

Eurobloks

In Eurobloks you can practise in a challenging way the change between the Euro and the Spanish peseta, Dutch Guilder, German Mark or Belgian Frank. In a rectangle are falling down green and blue blocks. The numbers in the green blocks represent the currency you have chosen in the main menu (pesetas, guilders, marks or franks), and the numbers in the blue blocks represent euro´s. You manoeuvre the blocks with the cursor keys: to the right, to the left and quickly down. You must try to make columns of two blocks: a green block above a blue block or a blue one above a green one. But you can only do this, if the values in euro's and the chosen currency are the same. If they aren't, then a red line will pop up from below and you will be penalysed by a reduction of the rectangle, which immediately will make it more difficult to proceed. When you have completed 15 "sums", you will continue in a higher level. After finishing the game, you will be able to write your name into the High Scores, which will surely increase your motivation! After playing the Eurobloks for a while, certainly you will notice that you are more used to calculate with euro's. This is a freeware listed under games category.

Keywords: euro practise change peseta guilder german dutch spanish mark belgian franc calculate play mathematics tetris pal tv

Valgetal has some si...

Valgetal Falling Numbers

Valgetal has some similarities with a Russian game, but is also something completely new. It challenges you to complete basic math equations by controlling the placement of falling numbers. If you create a vertical column of three blocks, the number on top must be the sum of the two below it; if it isn't, you are penalised by a reduction in the size of the container, which immediately makes it harder to control successive blocks precisely. There are 20 progressively difficult levels to begin with, in each of the four math disciplines. A high-score board lets you post your name and results. The game's name means 'falling numbers' in Dutch: English, Friesian, Dutch, German and Spanish interfaces are included. Although it's great fun, Valgetal is an addictive learning tool that educators and students should check out! This education software is listed under mathematics, games.

Keywords: mathematics educational play fun kids number calculate arithmetics adding subtracting mulplying dividing tetris learn math mathematical education falling blocks valgetal tool displays

Powers of ten is an ...

Powers of Ten

Powers of ten is an item of algebra that causes sometimes problems for the math students of high schools. Therefore we have developed the educational program "Powers of Ten". With this educational software the user will learn to write powers of ten as decimal numbers, how to multiply and divide powers of ten, how to multiply with the square root and how to raise a power to a power to ten. There are seven different exercises. It is also possible to play for a High Score, which will surely increase the motivation! The program is Ms-dos based, and will already work on rather "old" computers, but also in Windows 3.x and in the newest computers with Windows 95/98+, XP etc. It is suitable for high schools or elementary schools, for students aged between about 11 and 17 years, but could of course also be used at home. This is a demo listed under mathematics category.

Keywords: algebra mathematics powers of ten math maths school add subtract multiply divide raise root data creation

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