In flipped learning, assessment is typically conducted both before and after the lesson. Before the lesson, students are assessed on their prior knowledge and understanding of the topic. After the lesson, students are assessed on their understanding of the new material and their ability to apply it to new situations.

Standardized testing is not a type of assessment commonly used in flipped learning. Formative assessment, summative assessment, self-assessment, and peer assessment are all types of assessment that are commonly used in flipped learning.

Formative assessment in flipped learning is primarily used to measure student achievement, provide feedback to students, and identify students who are struggling. By providing timely and specific feedback, formative assessment helps students to identify areas where they need to improve and make adjustments to their learning strategies.

Technology in assessment in flipped learning does not eliminate the need for paper-based assessments. While technology can be used to deliver and collect assessments, paper-based assessments may still be necessary in some cases, such as when students need to demonstrate their ability to write or draw.

Grading student work is not a challenge associated with assessment in flipped learning. While grading student work can be time-consuming, it is not a unique challenge to flipped learning. All teachers, regardless of the instructional model they use, need to grade student work.