3-Digit Place Value Machine
The three-digit place value machine is broken. A CRT shows a number. Press Hundreds, Tens, and Ones wafers into the tubes, then throw Power so Lit matches. Second grade kids practice place value by building a visual three-digit number. Spark points grow with a streak.
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How to Play Wafer Press
The Rig starts
Wafer Press starts on its own. Tap Easy, Medium, or Hard on the copper bar. There is no Play button over the tubes.
Read the number
The CRT shows a three-digit number. The prompt says Press the wafers. Read Hundreds, Tens, and Ones. The Lit plaque counts what you have already pressed.
Press the wafers
Press a Hundreds wafer into Hundreds, a Tens wafer into Tens, and an Ones wafer into Ones. Yank a wafer out of a tube if you pressed too many. If a place is 0, leave that tube empty. Then throw Power. When Lit matches, you hear Number lit.
Fill Rig to Press quiet
Light eight numbers to win, or keep going until the Lamps are gone. Press quiet shows your Spark score, a rank, and Press again.
Key Features
Press the wafers
The CRT shows a three-digit number. Press a Hundreds wafer, a Tens wafer, or an Ones wafer into that tube. Yank a wafer back out if you need to. Then throw Power. A hit lights Number lit and adds Spark. A miss dumps the tubes and snuffs a Lamp.
A Rig toward Press quiet
Wafer Press starts on its own. Easy, Medium, or Hard stay on the copper bar so you can switch without a menu. Each Number lit fills Rig. Eight lit numbers reach Press quiet.
Spark score and streak
Each Number lit starts at 120 Spark and grows by 60 with a streak. Point pops fly off Power. A miss resets the streak.
Difficulty that changes the skill
Easy uses small three-digit numbers with no zeros, and Power glows when Lit already matches. Medium opens 100-999 and empty tubes for a zero. Hard keeps that range, often hides a zero, hides the tube words, and writes the number as hundreds + tens + ones.
What is Wafer Press?
Wafer Press is a second grade place value game. Kids press Hundreds, Tens, and Ones wafers into three glass tubes, then throw Power to match a three-digit number on a CRT. Easy stays on small numbers with no zeros. Medium and Hard open 100-999, including empty tubes for zero. Hard also hides tube words and shows the number as hundreds + tens + ones. The skill is building a visual three-digit number, not tapping a quiz card.
Why Play Wafer Press?
Three-digit place value in motion
Second grade math asks kids to see hundreds, tens, and ones. Wafer Press makes that a press: read the CRT, Press the wafers, then throw Power.
A race to light the Rig
Each Number lit fills Rig. Kids feel the machine come back online when Lit matches.
Instant tube feedback
A hit sprays Spark off Power and the CRT says Number lit. A miss dumps the wafers. The board always uses Press the wafers, so the CRT and the how-to say the same words.
Works on a finger or a mouse
Press a wafer plate or Yank a tube. Touch targets stay large, and on Easy, Power glows when Lit is ready.
Frequently Asked Questions
What numbers appear in Wafer Press?
The CRT shows a three-digit number. Easy uses small numbers with no zeros. Medium uses 100-999, including zeros. Hard uses 100-999, often with a zero, hides the tube words, and writes the number as hundreds + tens + ones.
How do I score Spark points?
Each Number lit starts at 120 Spark and grows by 60 with a streak. A miss resets the streak and snuffs one of three Lamps.
What does Press the wafers mean?
Read the CRT. Press a Hundreds wafer into Hundreds, a Tens wafer into Tens, and an Ones wafer into Ones until Lit matches the number. Yank extras out. If a place is 0, leave that tube empty. Then throw Power.
What changes on Hard?
Hard still uses 100-999, but zeros show up more often, tube words hide, and the CRT writes hundreds + tens + ones so you Press the wafers from expanded form.
What grade is Wafer Press for?
Wafer Press is second grade place value for three-digit numbers. Easy stays on small numbers with no zeros. Medium and Hard open the rest of 100-999.