Age Test vs Correct and Quick Arithmetic

Age Test is a tone generator and sound viewer for the science class. Turn the aluminium knob to play any pitch from 20 Hz to 22 kHz, watch it on a live spectrum, and find the highest tone each listener reports hearing. LISTEN • Press the knob to play, turn it to tune: 8 to 22 kHz in 0.1 kHz steps, or the full range from 20 Hz • Sweep slowly upward, so a room can keep hands up while they still hear the tone • Left ear, right ear or both • A frequency readout with plain context for every pitch SEE THE SOUND • The microphone draws a live spectrum and names the loudest pitch • A tone still stands as a peak after the hands have gone down HOW HIGH? • Tones from 8 to 20 kHz, one kHz apart, with hidden silent checks against guessing • Set a comfortable volume first; turning it up during the tones stops the check • Shows the highest tone you reported hearing, with this equipment and volume. It plays selected tones and stops at the first one you miss, so it is not an exact hearing limit. IN CLASS Human hearing is commonly described as reaching from 20 Hz to 20 kHz, and the highest pitches tend to fade first as ears age. Age Test lets a class hear, and see, where that edge sits with the equipment in the room. FOR LEARNING, NOT A MEDICAL DEVICE Age Test does not assess anyone's hearing and says nothing about the health of their ears. If you are worried about your hearing, see an audiologist. Free, with no ads and no account. Nothing leaves your device: the microphone is only analysed on the device, never recorded.

Correct and Quick Arithmetic does exactly what the name predicts. First practice the basic calculations, and then speed it up. This app was developed for everyone who would like to train and maintain the basic processes of arithmetic. In this app you will find exercises with number bonds to 10, addition and subtraction sums up to 100, and the multiplication and division tables up to and including 10. These are the foundations needed for arithmetic. The ultimate goal is to have committed to memory the answers to number bonds to 10, addition and subtraction sums up to 20, and the tables through 10 (within 2 seconds). For sums up to 100, the way to work them out is automated. No distractions in the app The appearance of the app is kept as simple as possible. Scores are not saved. Experience shows that in particular, those who are not so good in arithmetic, like this! The structure of the levels of mental arithmetic in the app: Number bonds to 10 Addition and Subtraction to 10 Addition and Subtraction to 20 Addition and Subtraction to 100 Multiplications tables from 0 to 5 and 10 Multiplications tables from 6 to 9 Division Tables from 1 to 5 and 10 Division Tables from 6 to 9Division Tables from 6 to 9 First start to practice without timing yourself. In practice mode (X), the correct answer appears after a wrong answer. Wrongly answered sums are always repeated. Only when this goes well will you be able to start training at speed. So first CORRECT and only then QUICK! Stick to the running order of the sums in the app! Practise the number bonds and the sums up to 10 until you can do them all well, and most importantly, fast. These are the most important sums in mental arithmetic!! Level button With this button you can choose between 1 Level or Mix of levels. After a series of sums, a smiley will show how many you got right and how many wrong. The more sums you get right, the happier the smiley is! Ultimately, the reward is realizing just how good it is to be able to do these calculations quickly and correctly. You'll find that the arithmetic that comes later will also go better and more quickly because of it. Correct and Quick Arithmetic is an indispensable instrument, dependent on any method, for learning mental arithmetic! Have fun, and good luck with Correct and Quick Arithmetic! M&M Breuking