"actively took part" is correct and usable in written English.
You can use it when talking about someone participating in an activity willingly and with enthusiasm. For example, "Jason actively took part in the charity event, raising more money than anyone else."
It is important to note that in the four classrooms all students present actively took part in all activities.
The banks have vigorously denied that they actively took part in an illegal scheme.
Despite the many obstacles and risks, they weren't discouraged and actively took part.
The U.S. section, War Resisters League, played an important role in the opposition to the Vietnam War and actively took part in that country's civil rights movement.
But officials said they had not unearthed evidence that anyone beyond those currently under arrest in Canada actively took part in the aborted fertilizer bomb plot.
Data were collected through focus group discussions with selected members of local community, who actively took part in the projects; key informant interviews with conservation personnel and district fisheries officials; questionnaire surveys of a random sample of project beneficiary households; and a review of pertinent documents.
What partners like about this type of setup is they have more control over how the investment is managed and, if they choose, can actively take part in investment activities.
Debriefing sessions provided useful arena to discuss difficulties caused by AJM's dual role of a researcher and health worker when actively taking part in the activities in Hälsotorg.
"I was able to actively take part in this mentoring activity because of the career choices I have made.
By implementing the proposed active-reactive power scheduling, the DERs are willing to actively take part in the Var control issue at distribution level with enough economic incentive.
