Sudoku puzzles: These puzzles require logical thinking and problem-solving skills. They can help students develop their critical thinking abilities and improve their mathematical reasoning.

Logic puzzles: These puzzles involve deductive reasoning and require students to think outside the box. They can help students develop their problem-solving skills and enhance their ability to analyze and evaluate information.

Tangrams: Tangrams are ancient Chinese puzzles that involve rearranging geometric shapes to form specific figures. They can help students develop spatial reasoning skills and improve their understanding of geometric concepts.

Math riddles: Math riddles are a fun way to engage students in critical thinking and problem-solving. They can help students develop their logical reasoning skills and improve their ability to think creatively.

Math games: There are various math games available that can help students practice and reinforce their math skills while also promoting critical thinking. Games like Math Dice, Set, and Prime Climb can challenge students to think strategically and apply their mathematical knowledge.

Math investigations: These open-ended tasks require students to explore and investigate mathematical concepts independently. They can help students develop their problem-solving skills, encourage them to think critically, and foster a deeper understanding of mathematical concepts.

Math projects: Assigning math projects can provide students with opportunities to apply their mathematical knowledge to real-world situations. Projects can involve tasks such as designing a budget, creating a scale model, or analyzing data. These projects can help students develop their problem-solving skills and enhance their ability to think critically and creatively.

Math debates: Organizing math debates can encourage students to think critically and develop their argumentation skills. Debates can involve topics such as the importance of learning algebra, the use of calculators in math education, or the relevance of geometry in everyday life. Debates can help students develop their ability to analyze and evaluate information, as well as improve their communication skills.

Math puzzles and brain teasers: These activities can challenge students to think creatively and critically. They can involve tasks such as finding patterns, solving number sequences, or solving mathematical equations. These puzzles and brain teasers can help students develop their problem-solving skills and improve their ability to think logically.

Math simulations: Using math simulations can provide students with hands-on experiences that require critical thinking and problem-solving. Simulations can involve tasks such as designing a roller coaster, planning a road trip, or managing a budget. These simulations can help students develop their ability to analyze and evaluate information, as well as improve their mathematical reasoning skills.