Halloween Ghost Hunt: Catch the Ghost Whose Number Fits the Compare Sign
A line of ghosts drifts across the screen, each holding a two- or three-digit number, while a glowing sign flashes greater-than or less-than. You scan the line and catch the ghost that satisfies the sign before it slips off, training place-value comparison and the focus to hold one direction under time pressure.
The Sign Says Less-Than, Yet the Biggest Number Still Grabs Your Eye
Most second graders can rank numbers correctly when they work slowly, but under a ticking clock the eye jumps to the largest digit on screen and grabs it—even when the sign asked for the smaller value. Halloween Ghost Hunt separates those two moves on purpose: the compare sign light pulses first, so the direction registers before any ghost is reachable, and only then does the line open up for a catch. Because a wrong swipe lets the target ghost escape, the game rewards reading the open side of the sign rather than chasing magnitude. Over a round, learners feel the difference between knowing greater and less and actually inhibiting the automatic grab for the biggest number.
From Two-Digit Compares to Reasoning Across Three Place Values (Grade 2-3)
The game sits right on 2.NBT.A.4, comparing three-digit numbers by hundreds, tens, and ones with the >, =, and < symbols. It builds on the two-digit comparison learned in first grade (1.NBT.B.3) and gives third graders the fluent place-value reading they will lean on for rounding and multi-digit arithmetic. Students who can name the open side of the sign quickly carry that habit straight into ordering and estimation work.
Three Comparison Skills Practiced Before Dropping the Net
- Compare two- and three-digit numbers by place value.
- Read greater-than and less-than direction accurately.
- Filter choices without reversing the comparison target.
Three Moves to Catch the Number: Read, Compare, Net
- Read whether the round asks for a greater, smaller, or matching comparison.
- Compare digits from the highest place first.
- Drop the capture net on the correct number and explain the direction after a miss.
Five-Minute Teacher Routine: Turn the Compare Sign Light Into a Direction Cue
Sort a few numbers into bigger and smaller groups on paper before play. That quick comparison warm-up helps the in-game choices become more reliable.
Halloween Ghost Hunt Questions Teachers Ask About Reversed Signs
Q: How can I help a student who reverses greater-than and less-than?
A: Have them say that the open side faces the larger number before each round.
Q: What should students compare first?
A: Start with the highest place value, then move right only if the digits match.