Rank Order Logic, Regatta Finish Times

Use a math logic grid to review a unit or a reasoning puzzle as a break between units. Model how to mark one clue before students start.

Convert decimal minutes to minutes and seconds to rank six sailboats, starting with Albatross at 44.25. One minute is 60 seconds, so 0.5 minute is 30 seconds, and the time 40:05 means 40 minutes 5 seconds. The directions on the page read: Six sailboats finished a race with no ties. Use the clues to find each boat's time, then list the boats from first place to last. Write each time as minutes:seconds, and show your conversion and addition or subtraction in the Work column. An answer key is included.

Yes, both. We made it for 8th grade math puzzles, and it works the same at home or at school. At home, a student can work through it alone and then go over it with you, which shows quickly what is solid and what needs another look. In class it works as independent practice, homework or a warm-up, and you can print one copy or a full set.

Read each clue and mark X where a pairing cannot be true and a dot or circle where it must be. When a row has only one open square, it must be the match. Keep going until every square is marked.

A nonogram is a grid puzzle where the numbers beside each row and column give the lengths of shaded runs. Shading only the squares the clues prove reveals a hidden picture, such as the hot air balloon in the 12 by 12 puzzle.

Students first solve a problem, such as finding four slopes or four planter volumes, and then use those answers to apply the clues. Logic Grid, Kite Strings and Right Triangles uses the Pythagorean theorem this way.