The Open-Collector Logic Device
In this animated object, learners view the operation of an open-collector inverter with and without a pull-up resistor.
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This game will help kindergarten, 1st, and 2nd grade students learn and review the difference between high and low sounds. Students will choose the number of players they want. When the game board comes up, click on the spin button. Read the question that appears. Answer the question. If answered correctly the bee will fly up higher toward the beehive. Have Fun!