Yes, the CBSE Class 5 mathematics textbook includes several group activities and projects. These activities and projects are designed to promote collaborative learning, critical thinking, and problem-solving skills among students. They encourage students to work together, share ideas, and apply their mathematical knowledge in real-life situations. Here are some examples of group activities and projects found in the CBSE Class 5 mathematics textbook:

1. Group Problem Solving:
In this activity, students are divided into groups and given a set of mathematical problems to solve. They are encouraged to discuss and brainstorm different strategies to solve the problems. This activity not only helps students develop problem-solving skills but also fosters teamwork and collaboration.

2. Math Games:
The textbook includes various math games that can be played in groups. These games are not only fun but also help students reinforce their mathematical concepts and skills. By playing these games together, students get to practice their math skills in an engaging and interactive manner.

3. Real-life Projects:
The textbook also includes real-life projects that require students to apply their mathematical knowledge in practical situations. For example, students may be asked to plan a budget for a family vacation or design a floor plan for a house. These projects encourage students to think critically, analyze data, and make mathematical decisions.

4. Group Discussions:
Throughout the textbook, there are several opportunities for group discussions. Students are encouraged to share their thoughts, ideas, and solutions to mathematical problems. This not only enhances their understanding of mathematical concepts but also promotes effective communication and collaboration among students.

5. Problem-solving Scenarios:
The textbook presents problem-solving scenarios that require students to work together in groups to find solutions. These scenarios are designed to develop students' critical thinking and problem-solving skills. Students are encouraged to analyze the given information, identify the problem, and come up with innovative solutions.

Overall, the CBSE Class 5 mathematics textbook incorporates various group activities and projects to make the learning process interactive, engaging, and collaborative. These activities not only reinforce mathematical concepts but also promote teamwork, communication, and critical thinking skills among students.